# Detail Components Reference -- BD Architect Library (87 Families)

> The complete palette for assembling architectural details in Revit via API.
> Source: BD Architect Detail Library 2025 (251 detail files, 3 source projects).
> Generated: 2026-03-05

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## QUICK LOOKUP -- Components by Detail Type

Use this table to instantly identify which detail item families are needed for any given detail.

| Detail Type | Components Needed |
|-------------|-------------------|
| **Wood frame wall section** | Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section, Rigid Insulation-Section, Siding-Wood Bevel, Nominal Cut Lumber-Section |
| **Wood frame bearing partition** | Dimension Lumber-Section, Nominal Cut Lumber-Section, Gypsum Wallboard-Section, Plywood-Section, Resilient Topset Base-Section |
| **Metal stud partition (non-rated)** | C Studs-Section, Runner Channels-Section, Gypsum Wallboard-Section, Resilient Topset Base-Section |
| **Metal stud partition (1-hr rated)** | C Studs-Section, Runner Channels-Section, Gypsum Wallboard-Section (x2 layers), Fire_Rating_Ribbon_1HR, Resilient Topset Base-Section |
| **Metal stud partition (2-hr rated)** | C Studs-Section, Runner Channels-Section, Gypsum Wallboard-Section (x2 layers each side), Fire_Rating_Ribbon_1HR |
| **Shaftwall partition** | C Studs-Section, Interior Metal Channels-Section, Gypsum Sheathing-Section, Gypsum Wallboard-Section |
| **CMU wall section** | 04-CMU-2 Core-Section, CMU-2 Core-Side, Bond Beams-Single-Section, Bond Beam - 001, Reinf Bar Section, Gypsum Wallboard-Section |
| **CMU infill** | 04-CMU-2 Core-Section, CMU-2 Core-Side, Bond Beams-Single-Section, Reinf Bar Section, Anchor Bolt |
| **Furring at CMU/concrete** | Interior Metal Channels-Section, Interior Metal Runner Channels-Section, Gypsum Wallboard-Section, 07-INSULATION-RIGID |
| **Exterior stucco wall** | C Studs-Section, Gypsum Sheathing-Section, 07-INSULATION-RIGID, Gypsum Plaster-Section, Gypsum Wallboard-Section |
| **STO (EIFS) wall section** | C Studs-Section, Gypsum Sheathing-Section, 07-INSULATION-RIGID, Gypsum Wallboard-Section |
| **Door head at stud partition** | C Studs-Section, Runner Channels-Section, Gypsum Wallboard-Section, 06-FRAMING-WOOD-Section-Stretch1, Caulking-Section |
| **Door head at CMU wall** | 04-CMU-2 Core-Section, Bond Beams-Single-Section, Reinf Bar Section, Gypsum Wallboard-Section |
| **Door head at concrete wall** | Gypsum Wallboard-Section, Caulking-Section, Anchor Bolt |
| **Door jamb at stud partition** | C Studs-Section, Gypsum Wallboard-Section, Caulking-Section |
| **Door jamb at CMU wall** | 04-CMU-2 Core-Section, CMU-2 Core-Side, Gypsum Wallboard-Section, Caulking-Section |
| **Ext. storefront head at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section, Gypsum Sheathing-Section, 07-INSULATION-RIGID, Caulking-Section |
| **Ext. storefront jamb at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section, Caulking-Section |
| **Ext. storefront sill at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section, Caulking-Section, Joint Sealant and Backer Rod-Section |
| **Ext. storefront door head** | Storefront Center Glazed-Door Head With Closer-Section, C Studs-Section, Gypsum Wallboard-Section, Gypsum Sheathing-Section |
| **Ext. storefront door jamb** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section |
| **Int. storefront head at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section |
| **Int. storefront jamb at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section |
| **Int. storefront sill at GWB** | Storefront Center Glazed-Head at Finish-Section, C Studs-Section, Gypsum Wallboard-Section |
| **Ext. slider window head** | Aluminum Sliding Door-Head-Section, C Studs-Section, Gypsum Wallboard-Section, Gypsum Sheathing-Section, 07-INSULATION-RIGID |
| **Ext. slider window sill** | Aluminum Sliding Door-Sill-Section, C Studs-Section, Gypsum Wallboard-Section, Caulking-Section |
| **Window head (wood double hung)** | Window Head - Wood Double Hung, Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section, Siding-Wood Bevel |
| **Window sill (wood double hung)** | Window Sill - Wood Double Hung, Window Sash - Wood Double Hung - Bottom, Dimension Lumber-Section, Plywood-Section |
| **Window head (wood casement)** | Window Head - Wood Casement, Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section |
| **Window sill (wood casement)** | Window Sill - Wood Casement, Window Sash - Wood Casement - Bottom, Dimension Lumber-Section |
| **Window jamb (wood double hung)** | Window Jamb - Wood Double Hung, Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section |
| **Window jamb (wood casement)** | Window Jamb - Wood Casement, Dimension Lumber-Section, Gypsum Wallboard-Section |
| **Roof tile eave** | Nominal Cut Lumber-Section, Plywood-Section, Asphalt Shingles Dynamic-2, Underlayment, Dimension Lumber-Section |
| **Roof tile ridge/hip** | Nominal Cut Lumber-Section, Plywood-Section, Asphalt Shingles Dynamic-2, Underlayment, Roof Ridge Vent |
| **Gable end detail** | Dimension Lumber-Section, Nominal Cut Lumber-Section, Plywood-Section, Siding-Wood Bevel, Gypsum Wallboard-Section |
| **Acoustical ceiling** | Suspended Acoustic Ceiling-Square Edge-Section, Suspension Wall Angle-Section, Interior Metal Channels-Section |
| **Soffit detail** | Plywood-Section, Dimension Lumber-Section, Gypsum Wallboard-Section, Molding - Crown 1 |
| **Shower pan** | Floor Drain with Waterproofing-Section, Resilient Flooring-Section, Plywood-Section |
| **Shower pan (Kerdi)** | KERDI-Floor Drain with Waterproofing-Section, Resilient Flooring-Section |
| **Grab bar at stud wall** | C Studs-Section, Gypsum Wallboard-Section, 06-FRAMING-WOOD-Section-Stretch1 |
| **Grab bar at CMU wall** | 04-CMU-2 Core-Section, CMU-2 Core-Side, Gypsum Wallboard-Section |
| **Wall base flashing (stucco)** | Gypsum Plaster-Section, C Studs-Section, Joint Sealant and Backer Rod-Section, Caulking-Section |
| **Countertop edge** | Plastic-Laminate1, Plywood-Section, Dimension Lumber-Section |
| **Slab penetration** | Reinf Bar Section, Caulking-Section, Joint Sealant and Backer Rod-Section |
| **Control joint in GWB** | Gypsum Wallboard-Section, C Studs-Section, Joint Sealant and Backer Rod-Section |
| **Wall guard mounting** | Corner Guard-Rounded, Gypsum Wallboard-Section, C Studs-Section |
| **Typical header (wood)** | Dimension Lumber-Section, Plywood-Section, Nominal Cut Lumber-Section, Common Wood Nails-Side |
| **Interior furring** | Interior Metal Channels-Section, Interior Metal Runner Channels-Section, Gypsum Wallboard-Section |
| **Pocket door head/jamb** | C Studs-Section, Runner Channels-Section, Gypsum Wallboard-Section, Dimension Lumber-Section |

---

## COMPONENT FAMILIES BY FUNCTIONAL GROUP

### GROUP 1: FRAMING -- WOOD (7 families)

#### Dimension Lumber-Section
- **Category Group**: Framing
- **Orientation**: Section -- cut perpendicular to grain, shows rectangular cross-section
- **Typical Use Cases**: Wall studs, top/bottom plates, headers, rafters, joists, blocking in wood-frame walls and roof assemblies
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Plywood-Section, Gypsum Wallboard-Section, Nominal Cut Lumber-Section, Common Wood Nails-Side
- **Line Weight**: 4 (medium -- structural member)
- **Notes**: Most-used wood framing component. Parametric for 2x4, 2x6, 2x8, 2x10, 2x12.

#### 06-FRAMING-WOOD-Section-Stretch1
- **Category Group**: Framing
- **Orientation**: Section -- stretchable wood member
- **Typical Use Cases**: Blocking above doors, cripple studs, misc wood framing that needs non-standard lengths
- **Placement Method**: Line-based (stretchable)
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section
- **Line Weight**: 4 (medium)
- **Notes**: Use when standard Dimension Lumber sizes don't fit. Stretches to any length.

#### Nominal Cut Lumber-Section
- **Category Group**: Framing
- **Orientation**: Section -- shows nominal dimensions (larger than Dimension Lumber)
- **Typical Use Cases**: Rough-sawn lumber, timber framing, older construction, decorative exposed beams
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Plywood-Section, Common Wood Nails-Side
- **Line Weight**: 4 (medium)
- **Notes**: 4 variants (Section, Section1, Section2, Section3) for different sizes.

#### Nominal Cut Lumber-Section1
- **Category Group**: Framing
- **Orientation**: Section -- alternate size
- **Typical Use Cases**: Same as Nominal Cut Lumber-Section, different default size
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Nominal Cut Lumber-Section
- **Line Weight**: 4

#### Nominal Cut Lumber-Section2
- **Category Group**: Framing
- **Orientation**: Section -- alternate size
- **Typical Use Cases**: Same as Nominal Cut Lumber-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Nominal Cut Lumber-Section
- **Line Weight**: 4

#### Nominal Cut Lumber-Section3
- **Category Group**: Framing
- **Orientation**: Section -- alternate size
- **Typical Use Cases**: Same as Nominal Cut Lumber-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Nominal Cut Lumber-Section
- **Line Weight**: 4

#### Nominal Cut Lumber-Top
- **Category Group**: Framing
- **Orientation**: Top/plan view -- shows lumber from above
- **Typical Use Cases**: Plan details showing wood blocking, nailer plates, top of sill plates
- **Placement Method**: Point placement
- **Common Scales**: 1/4" = 1'-0", 1/2" = 1'-0"
- **Paired With**: Common Wood Nails-Side, Dimension Lumber-Section
- **Line Weight**: 4

---

### GROUP 2: FRAMING -- METAL STUDS (10 families)

#### C Studs-Section
- **Category Group**: Framing
- **Orientation**: Section -- shows C-channel profile cut perpendicular to length
- **Typical Use Cases**: Primary metal stud in ALL metal-framed partitions, exterior walls, furring
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Runner Channels-Section, Gypsum Wallboard-Section, Rigid Insulation-Section
- **Line Weight**: 2 (thin -- light-gauge metal)
- **Notes**: THE most-used metal framing component. Appears in virtually every commercial partition detail. 4 variants for different gauges/sizes.

#### C Studs-Section1
- **Category Group**: Framing
- **Orientation**: Section -- alternate gauge/size
- **Typical Use Cases**: Same as C Studs-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as C Studs-Section
- **Line Weight**: 2

#### C Studs-Section2
- **Category Group**: Framing
- **Orientation**: Section -- alternate gauge/size
- **Typical Use Cases**: Same as C Studs-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as C Studs-Section
- **Line Weight**: 2

#### C Studs-Section3
- **Category Group**: Framing
- **Orientation**: Section -- alternate gauge/size
- **Typical Use Cases**: Same as C Studs-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as C Studs-Section
- **Line Weight**: 2

#### C Studs-Side
- **Category Group**: Framing
- **Orientation**: Side/elevation -- shows C-stud from the side (web visible)
- **Typical Use Cases**: Elevation views of stud walls, plan details showing stud layout, stud reinforcement details
- **Placement Method**: Point placement
- **Common Scales**: 1/4" = 1'-0", 1/2" = 1'-0", 1" = 1'-0"
- **Paired With**: C Studs-Section, Runner Channels-Section
- **Line Weight**: 2

#### Runner Channels-Section
- **Category Group**: Framing
- **Orientation**: Section -- U-shaped track profile
- **Typical Use Cases**: Top and bottom tracks for metal stud partitions, deflection tracks
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section
- **Line Weight**: 2
- **Notes**: Always placed at top and bottom of every metal stud partition.

#### Interior Metal Channels-Section
- **Category Group**: Framing
- **Orientation**: Section -- hat channel or resilient channel profile
- **Typical Use Cases**: Furring channels at CMU/concrete, resilient channels for sound isolation, ceiling framing
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Interior Metal Runner Channels-Section, Gypsum Wallboard-Section
- **Line Weight**: 2

#### Interior Metal Channels-Top
- **Category Group**: Framing
- **Orientation**: Top/plan view -- shows channel from above
- **Typical Use Cases**: Plan details showing furring layout, ceiling grid framing plans
- **Placement Method**: Point placement
- **Common Scales**: 1/4" = 1'-0", 1/2" = 1'-0"
- **Paired With**: Interior Metal Channels-Section
- **Line Weight**: 2

#### Interior Metal Runner Channels-Section
- **Category Group**: Framing
- **Orientation**: Section -- runner track for interior channels
- **Typical Use Cases**: Perimeter track for furring systems, ceiling channel runners
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Interior Metal Channels-Section, Gypsum Wallboard-Section
- **Line Weight**: 2

#### Interior Metal Studs-Side
- **Category Group**: Framing
- **Orientation**: Side/elevation -- shows metal stud from side with web punchouts
- **Typical Use Cases**: Elevation details showing stud layout, door frame reinforcement
- **Placement Method**: Point placement
- **Common Scales**: 1/2" = 1'-0", 1" = 1'-0"
- **Paired With**: C Studs-Section, Runner Channels-Section
- **Line Weight**: 2

#### 09-FRAMING_CHANNEL
- **Category Group**: Framing
- **Orientation**: Section -- generic framing channel
- **Typical Use Cases**: Miscellaneous metal framing, bracing, bridging
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section
- **Line Weight**: 2

---

### GROUP 3: SHEATHING & BOARD (10 families)

#### Gypsum Wallboard-Section
- **Category Group**: Sheathing
- **Orientation**: Section -- thin rectangular board shown in cross-section
- **Typical Use Cases**: Interior wall finish on EVERY partition and wall type, ceiling finish, shaft lining
- **Placement Method**: Line-based (runs along framing face)
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: C Studs-Section, Dimension Lumber-Section, Runner Channels-Section, Resilient Topset Base-Section
- **Line Weight**: 2 (thin)
- **Notes**: THE single most-used component in the entire library. Appears in every wall detail. 3 variants for different thicknesses (1/2", 5/8", double-layer). Use multiple instances for multi-layer assemblies.

#### Gypsum Wallboard-Section1
- **Category Group**: Sheathing
- **Orientation**: Section -- alternate thickness
- **Typical Use Cases**: Same as Gypsum Wallboard-Section, typically 5/8" type X for fire-rated assemblies
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Gypsum Wallboard-Section
- **Line Weight**: 2

#### Gypsum Wallboard-Section2
- **Category Group**: Sheathing
- **Orientation**: Section -- alternate thickness/type
- **Typical Use Cases**: Same as above
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Gypsum Wallboard-Section
- **Line Weight**: 2

#### Gypsum Sheathing-Section
- **Category Group**: Sheathing
- **Orientation**: Section -- exterior gypsum board
- **Typical Use Cases**: Exterior sheathing on metal stud walls (behind stucco, EIFS, or rain screen), fire-rated shaft lining
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: C Studs-Section, 07-INSULATION-RIGID, Gypsum Plaster-Section
- **Line Weight**: 2
- **Notes**: 3 variants. Distinguished from wallboard by use on exterior face. Often DensGlass or similar.

#### Gypsum Sheathing-Section1
- **Category Group**: Sheathing
- **Orientation**: Section -- alternate
- **Typical Use Cases**: Same as Gypsum Sheathing-Section
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Gypsum Sheathing-Section
- **Line Weight**: 2

#### Gypsum Sheathing-Section2
- **Category Group**: Sheathing
- **Orientation**: Section -- alternate
- **Typical Use Cases**: Same as Gypsum Sheathing-Section
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Gypsum Sheathing-Section
- **Line Weight**: 2

#### Plywood-Section
- **Category Group**: Sheathing
- **Orientation**: Section -- shows laminated layers in cross-section
- **Typical Use Cases**: Wall sheathing, roof deck, subfloor, headers, blocking behind fixtures
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Siding-Wood Bevel, Asphalt Shingles Dynamic-2
- **Line Weight**: 3 (medium)
- **Notes**: 2 variants. Cross-hatch pattern in section distinguishes from solid lumber.

#### Plywood-Section1
- **Category Group**: Sheathing
- **Orientation**: Section -- alternate thickness
- **Typical Use Cases**: Same as Plywood-Section
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Plywood-Section
- **Line Weight**: 3

#### 06-SHEATHING-Plywood-Section1
- **Category Group**: Sheathing
- **Orientation**: Section -- CSI division 06 plywood
- **Typical Use Cases**: Same as Plywood-Section, may include different hatch pattern or keynote mapping
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Siding-Wood Bevel
- **Line Weight**: 3

#### Gypsum Plaster-Section
- **Category Group**: Sheathing/Finish
- **Orientation**: Section -- thin plaster layer in section
- **Typical Use Cases**: Stucco finish coat on exterior walls, plaster finish over CMU, interior plaster
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Sheathing-Section, C Studs-Section, 04-CMU-2 Core-Section
- **Line Weight**: 2 (thin)

---

### GROUP 4: INSULATION (2 families)

#### Rigid Insulation-Section
- **Category Group**: Insulation
- **Orientation**: Section -- shows rigid board with X-pattern or stipple fill
- **Typical Use Cases**: Exterior continuous insulation (ci), foundation insulation, roof insulation, thermal break at slab edges
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Gypsum Sheathing-Section, C Studs-Section, 04-CMU-2 Core-Section
- **Line Weight**: 2 (thin)
- **Notes**: Parametric thickness. Used for XPS, EPS, polyiso board.

#### 07-INSULATION-RIGID
- **Category Group**: Insulation
- **Orientation**: Section -- CSI division 07 rigid insulation
- **Typical Use Cases**: Same as Rigid Insulation-Section, may include different hatch or keynote
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Sheathing-Section, Gypsum Plaster-Section
- **Line Weight**: 2

---

### GROUP 5: MASONRY (5 families)

#### 04-CMU-2 Core-Section
- **Category Group**: Masonry
- **Orientation**: Section -- shows 2-core CMU block cut through cells, webs, and face shells
- **Typical Use Cases**: CMU wall sections, CMU infill, CMU partitions, elevator/stair shafts
- **Placement Method**: Point placement
- **Common Scales**: 1/2" = 1'-0", 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Bond Beams-Single-Section, Reinf Bar Section, CMU-2 Core-Side, Gypsum Wallboard-Section
- **Line Weight**: 4 (medium-heavy -- masonry)
- **Notes**: Primary CMU component for section views. Shows the characteristic 2-cell pattern.

#### CMU-2 Core-Side
- **Category Group**: Masonry
- **Orientation**: Side/elevation -- shows CMU coursing pattern (face of wall)
- **Typical Use Cases**: CMU wall elevation views, CMU infill details showing coursing, plan views of CMU walls
- **Placement Method**: Point placement (or array for coursing)
- **Common Scales**: 1/4" = 1'-0", 1/2" = 1'-0", 1" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, Bond Beam - 001, Reinf Bar Section
- **Line Weight**: 3
- **Notes**: Shows the mortar joints and block faces. Stack multiple for full wall height.

#### Bond Beams-Single-Section
- **Category Group**: Masonry
- **Orientation**: Section -- shows bond beam block with grouted cell and rebar
- **Typical Use Cases**: Horizontal reinforcement in CMU walls, lintel beams above openings, top-of-wall bond beams
- **Placement Method**: Point placement
- **Common Scales**: 1/2" = 1'-0", 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, Reinf Bar Section
- **Line Weight**: 4

#### Bond Beam - 001
- **Category Group**: Masonry
- **Orientation**: Section/Side -- alternate bond beam representation
- **Typical Use Cases**: Same as Bond Beams-Single-Section
- **Placement Method**: Point placement
- **Common Scales**: 1/2" = 1'-0", 1" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, CMU-2 Core-Side
- **Line Weight**: 4

#### Glazed Face CMU-Section
- **Category Group**: Masonry
- **Orientation**: Section -- shows glazed-face CMU in cross-section
- **Typical Use Cases**: Glazed block walls (hospitals, schools, restrooms), wainscot
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, Bond Beams-Single-Section
- **Line Weight**: 4

#### Brick Standard
- **Category Group**: Masonry
- **Orientation**: Section/Side -- shows standard modular brick
- **Typical Use Cases**: Brick veneer walls, brick wainscot, brick sill details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Rigid Insulation-Section, Gypsum Sheathing-Section, Anchor Bolt, A307 Bolts-Side
- **Line Weight**: 4

---

### GROUP 6: ROOFING & WATERPROOFING (4 families)

#### Asphalt Shingles Dynamic-2
- **Category Group**: Roofing
- **Orientation**: Section/Side -- shows overlapping shingle profile at roof edge
- **Typical Use Cases**: Roof eave details, ridge details, roof-wall intersections, dormer details
- **Placement Method**: Line-based (follows roof slope)
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Underlayment, Plywood-Section, Dimension Lumber-Section
- **Line Weight**: 3
- **Notes**: Dynamic family -- adjusts to show shingle overlap pattern.

#### Underlayment
- **Category Group**: Roofing
- **Orientation**: Section -- thin membrane layer
- **Typical Use Cases**: Roofing underlayment (felt paper, synthetic), under shingles or tile
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Asphalt Shingles Dynamic-2, Plywood-Section
- **Line Weight**: 1 (thin -- membrane)

#### Roof Ridge Vent
- **Category Group**: Roofing
- **Orientation**: Section -- shows ridge vent profile at roof peak
- **Typical Use Cases**: Roof ridge details, ventilation details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Asphalt Shingles Dynamic-2, Plywood-Section, Dimension Lumber-Section
- **Line Weight**: 3

#### Floor Drain with Waterproofing-Section
- **Category Group**: Waterproofing
- **Orientation**: Section -- shows drain assembly with membrane turn-up
- **Typical Use Cases**: Shower pan details, wet room floor details, balcony drains
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Resilient Flooring-Section, Plywood-Section
- **Line Weight**: 3

#### KERDI-Floor Drain with Waterproofing-Section
- **Category Group**: Waterproofing
- **Orientation**: Section -- Schluter KERDI drain system in section
- **Typical Use Cases**: Shower pan details using Schluter system, curbless shower details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Resilient Flooring-Section
- **Line Weight**: 3

---

### GROUP 7: SEALANTS & JOINTS (3 families)

#### Caulking-Section
- **Category Group**: Sealant
- **Orientation**: Section -- shows small bead of caulk/sealant
- **Typical Use Cases**: Joint between dissimilar materials, perimeter of frames, weatherseal at openings
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, C Studs-Section, window/door frames
- **Line Weight**: 1 (thin)

#### Joint Sealant and Backer Rod-Section
- **Category Group**: Sealant
- **Orientation**: Section -- shows backer rod circle with sealant on top
- **Typical Use Cases**: Expansion joints, control joints, slab-to-wall joints, storefront perimeter, curtain wall joints
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, Gypsum Wallboard-Section, storefront components
- **Line Weight**: 2

#### Stone
- **Category Group**: Finish/Sealant
- **Orientation**: Section -- shows stone material in cross-section
- **Typical Use Cases**: Stone veneer, stone sills, stone thresholds, countertop edges
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Caulking-Section, Joint Sealant and Backer Rod-Section
- **Line Weight**: 4

---

### GROUP 8: FASTENERS & REINFORCEMENT (5 families)

#### Reinf Bar Section
- **Category Group**: Fastener/Reinforcement
- **Orientation**: Section -- shows circular rebar cross-section (filled circle)
- **Typical Use Cases**: Rebar in CMU walls, concrete walls, bond beams, grade beams, footings
- **Placement Method**: Point placement
- **Common Scales**: 1/2" = 1'-0", 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: 04-CMU-2 Core-Section, Bond Beams-Single-Section
- **Line Weight**: 5 (heavy -- emphasis on reinforcement)

#### Anchor Bolt
- **Category Group**: Fastener
- **Orientation**: Section/Side -- shows J-bolt or L-bolt embedded in masonry/concrete
- **Typical Use Cases**: Sill plate anchorage, CMU wall connections, base plate anchors
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Dimension Lumber-Section, 04-CMU-2 Core-Section
- **Line Weight**: 3

#### A307 Bolts-Side
- **Category Group**: Fastener
- **Orientation**: Side -- shows bolt with head and nut from side
- **Typical Use Cases**: Through-bolts, connection details, steel-to-wood/concrete connections
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, C Studs-Section
- **Line Weight**: 3

#### Common Wood Nails-Side
- **Category Group**: Fastener
- **Orientation**: Side -- shows nail profile (head, shank, point)
- **Typical Use Cases**: Nailing patterns, sheathing attachment, framing connections
- **Placement Method**: Point placement
- **Common Scales**: 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Plywood-Section
- **Line Weight**: 2

#### Flat-Head_Screw
- **Category Group**: Fastener
- **Orientation**: Side -- shows flathead screw profile
- **Typical Use Cases**: GWB attachment to studs, finish hardware, trim attachment
- **Placement Method**: Point placement
- **Common Scales**: 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, C Studs-Section, Plywood-Section
- **Line Weight**: 2

---

### GROUP 9: FINISH -- FLOORING & BASE (4 families)

#### Resilient Flooring-Section
- **Category Group**: Finish
- **Orientation**: Section -- thin floor finish layer
- **Typical Use Cases**: VCT, LVT, sheet vinyl, rubber flooring in section details
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Plywood-Section, Resilient Topset Base-Section
- **Line Weight**: 2

#### Resilient Topset Base-Section
- **Category Group**: Finish
- **Orientation**: Section -- shows cove base profile at wall-floor junction
- **Typical Use Cases**: Rubber/vinyl cove base at every partition, standard commercial base
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, C Studs-Section, Resilient Flooring-Section
- **Line Weight**: 2
- **Notes**: Very commonly used -- appears at the base of nearly every commercial partition detail.

#### Resilient Flat Base-Section1
- **Category Group**: Finish
- **Orientation**: Section -- flat (non-coved) base profile
- **Typical Use Cases**: Flat rubber/vinyl base where cove is not desired
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, Resilient Flooring-Section
- **Line Weight**: 2

#### Plastic-Laminate1
- **Category Group**: Finish
- **Orientation**: Section -- thin laminate layer
- **Typical Use Cases**: Countertop surface, cabinet face finish, wall panel finish
- **Placement Method**: Line-based
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Plywood-Section, Dimension Lumber-Section
- **Line Weight**: 2

---

### GROUP 10: TRIM & MOLDING (4 families)

#### Base Molding-Section
- **Category Group**: Trim
- **Orientation**: Section -- shows base molding profile
- **Typical Use Cases**: Wood base at residential walls, decorative base in finished spaces
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, Dimension Lumber-Section, Resilient Flooring-Section
- **Line Weight**: 3

#### Molding - Base 1
- **Category Group**: Trim
- **Orientation**: Section -- alternate base molding profile
- **Typical Use Cases**: Same as Base Molding-Section, different profile shape
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, Dimension Lumber-Section
- **Line Weight**: 3

#### Molding - Crown 1
- **Category Group**: Trim
- **Orientation**: Section -- crown molding profile at wall-ceiling junction
- **Typical Use Cases**: Crown molding details, soffit trim, cornice returns
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, Dimension Lumber-Section
- **Line Weight**: 3

#### Corner Guard-Rounded
- **Category Group**: Trim
- **Orientation**: Section -- shows rounded corner guard at outside wall corner
- **Typical Use Cases**: Wall corner protection (hospitals, corridors), wall guard details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section, C Studs-Section
- **Line Weight**: 3

---

### GROUP 11: CEILING SYSTEMS (3 families)

#### Suspended Acoustic Ceiling-Square Edge-Section
- **Category Group**: Ceiling
- **Orientation**: Section -- shows T-bar grid with acoustic tile in cross-section
- **Typical Use Cases**: Acoustical ceiling tile (ACT) details, ceiling edge conditions, partition-to-ceiling intersections
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Suspension Wall Angle-Section, Interior Metal Channels-Section
- **Line Weight**: 2

#### Suspension Wall Angle-Section
- **Category Group**: Ceiling
- **Orientation**: Section -- L-angle perimeter trim for suspended ceilings
- **Typical Use Cases**: Ceiling edge at walls, ceiling soffit transitions, bulkhead edges
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Suspended Acoustic Ceiling-Square Edge-Section, Gypsum Wallboard-Section
- **Line Weight**: 2
- **Notes**: 2 variants (Section, Section1).

#### Suspension Wall Angle-Section1
- **Category Group**: Ceiling
- **Orientation**: Section -- alternate size
- **Typical Use Cases**: Same as Suspension Wall Angle-Section
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Same as Suspension Wall Angle-Section
- **Line Weight**: 2

---

### GROUP 12: EXTERIOR CLADDING (1 family)

#### Siding-Wood Bevel
- **Category Group**: Cladding
- **Orientation**: Section -- shows overlapping bevel siding profile
- **Typical Use Cases**: Wood siding wall sections, exterior wall details, gable details
- **Placement Method**: Line-based (repeating along wall face)
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Plywood-Section, Dimension Lumber-Section, Rigid Insulation-Section
- **Line Weight**: 3

---

### GROUP 13: GLAZING -- STOREFRONT (4 families)

#### Storefront Center Glazed-Head at Finish-Section
- **Category Group**: Glazing
- **Orientation**: Section -- shows aluminum storefront head/jamb profile with glazing pocket
- **Typical Use Cases**: Storefront head details, storefront jamb details, sill details (when rotated), interior and exterior storefronts
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section, Caulking-Section, Gypsum Sheathing-Section
- **Line Weight**: 3
- **Notes**: Most versatile storefront component. Used at head, jamb, and sill by rotating.

#### Storefront Center Glazed-Door Head With Closer-Section
- **Category Group**: Glazing
- **Orientation**: Section -- storefront door header with closer housing shown
- **Typical Use Cases**: Storefront door head details (shows door closer recess)
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section, Gypsum Sheathing-Section
- **Line Weight**: 3

#### Storefront Center Glazed-Door Rail Bottom-Section
- **Category Group**: Glazing
- **Orientation**: Section -- bottom rail of storefront door
- **Typical Use Cases**: Storefront door threshold/sill details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Storefront Center Glazed-Head at Finish-Section, Caulking-Section
- **Line Weight**: 3

#### Aluminum Sliding Door-Head-Section
- **Category Group**: Glazing
- **Orientation**: Section -- aluminum slider door/window head frame profile
- **Typical Use Cases**: Sliding door/window head details, patio door head
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section, 07-INSULATION-RIGID
- **Line Weight**: 3

#### Aluminum Sliding Door-Sill-Section
- **Category Group**: Glazing
- **Orientation**: Section -- aluminum slider sill frame with weep slots
- **Typical Use Cases**: Sliding door/window sill details, patio door sill
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: C Studs-Section, Gypsum Wallboard-Section, Caulking-Section
- **Line Weight**: 3

---

### GROUP 14: GLAZING -- WOOD WINDOWS (12 families)

#### Window Head - Wood Double Hung
- **Category Group**: Glazing
- **Orientation**: Section -- shows wood window head frame in cross-section
- **Typical Use Cases**: Double-hung window head details in wood-frame walls
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section, Siding-Wood Bevel
- **Line Weight**: 3

#### Window Sill - Wood Double Hung
- **Category Group**: Glazing
- **Orientation**: Section -- shows wood window sill with slope for drainage
- **Typical Use Cases**: Double-hung window sill details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Window Sash - Wood Double Hung - Bottom, Dimension Lumber-Section, Plywood-Section
- **Line Weight**: 3

#### Window Jamb - Wood Double Hung
- **Category Group**: Glazing
- **Orientation**: Section (horizontal cut) -- shows wood window jamb profile
- **Typical Use Cases**: Double-hung window jamb details (plan-section through window)
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section
- **Line Weight**: 3

#### Window Sash - Wood Double Hung - Top
- **Category Group**: Glazing
- **Orientation**: Section -- upper sash profile at head
- **Typical Use Cases**: Part of double-hung window head assembly
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Window Head - Wood Double Hung
- **Line Weight**: 2

#### Window Sash - Wood Double Hung - Middle
- **Category Group**: Glazing
- **Orientation**: Section -- meeting rail where upper and lower sash overlap
- **Typical Use Cases**: Double-hung window mid-height detail showing meeting rail
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Window Head - Wood Double Hung, Window Sill - Wood Double Hung
- **Line Weight**: 2

#### Window Sash - Wood Double Hung - Bottom
- **Category Group**: Glazing
- **Orientation**: Section -- lower sash profile at sill
- **Typical Use Cases**: Part of double-hung window sill assembly
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Window Sill - Wood Double Hung
- **Line Weight**: 2

#### Window Head - Wood Casement
- **Category Group**: Glazing
- **Orientation**: Section -- casement window head frame profile
- **Typical Use Cases**: Casement window head details in wood-frame walls
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Gypsum Wallboard-Section, Plywood-Section
- **Line Weight**: 3

#### Window Sill - Wood Casement
- **Category Group**: Glazing
- **Orientation**: Section -- casement window sill profile
- **Typical Use Cases**: Casement window sill details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Window Sash - Wood Casement - Bottom, Dimension Lumber-Section
- **Line Weight**: 3

#### Window Jamb - Wood Casement
- **Category Group**: Glazing
- **Orientation**: Section (horizontal cut) -- casement window jamb
- **Typical Use Cases**: Casement window jamb details
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Dimension Lumber-Section, Gypsum Wallboard-Section
- **Line Weight**: 3

#### Window Sash - Wood Casement - Top
- **Category Group**: Glazing
- **Orientation**: Section -- casement upper sash profile
- **Typical Use Cases**: Part of casement window head assembly
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Window Head - Wood Casement
- **Line Weight**: 2

#### Window Sash - Wood Casement - Bottom
- **Category Group**: Glazing
- **Orientation**: Section -- casement lower sash profile
- **Typical Use Cases**: Part of casement window sill assembly
- **Placement Method**: Point placement
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Window Sill - Wood Casement
- **Line Weight**: 2

#### Window Handle - Wood Casement
- **Category Group**: Glazing
- **Orientation**: Section -- casement window crank/handle hardware
- **Typical Use Cases**: Casement window sill detail (shows operating hardware)
- **Placement Method**: Point placement
- **Common Scales**: 1-1/2" = 1'-0", 3" = 1'-0"
- **Paired With**: Window Sill - Wood Casement, Window Sash - Wood Casement - Bottom
- **Line Weight**: 2

---

### GROUP 15: ANNOTATION & SYMBOLS (8 families)

#### 00-BREAK LINE
- **Category Group**: Annotation
- **Orientation**: N/A -- graphic symbol
- **Typical Use Cases**: Indicating continuation of material/structure beyond detail boundary
- **Placement Method**: Line-based (two-point)
- **Common Scales**: Any
- **Paired With**: Any -- placed at detail edges
- **Line Weight**: 1

#### ANN_Break Line4
- **Category Group**: Annotation
- **Orientation**: N/A -- graphic symbol
- **Typical Use Cases**: Same as break line
- **Placement Method**: Line-based
- **Common Scales**: Any
- **Paired With**: Any
- **Line Weight**: 1

#### Break Line / Break Line1 / Break Line2 / Break Line3 / Break Line4 / Break Line5
- **Category Group**: Annotation
- **Orientation**: N/A -- graphic symbol (6 variants with different styles)
- **Typical Use Cases**: Indicating continuation of material/structure. Different styles: zigzag, wavy, simple
- **Placement Method**: Line-based (two-point)
- **Common Scales**: Any
- **Paired With**: Any -- placed at detail edges
- **Line Weight**: 1
- **Notes**: 6 variants plus 00-BREAK LINE and ANN_Break Line4 = 8 total break line families. Choose based on office standard.

---

### GROUP 16: FIRE RATING (1 family)

#### Fire_Rating_Ribbon_1HR
- **Category Group**: Annotation/Fire Rating
- **Orientation**: N/A -- graphic ribbon symbol placed along rated assemblies
- **Typical Use Cases**: Marking 1-hour fire-rated assemblies in partition details, marking rated barriers
- **Placement Method**: Line-based (follows assembly boundary)
- **Common Scales**: 1" = 1'-0", 1-1/2" = 1'-0"
- **Paired With**: Gypsum Wallboard-Section (x2 layers), C Studs-Section
- **Line Weight**: 1 (dashed or colored ribbon)
- **Notes**: Critical for code compliance. Place along the rated side of fire-rated partition details.

---

## CROSS-REFERENCE: FREQUENCY OF USE

Components ranked by how often they appear across the 251 detail files (estimated from detail type distribution):

| Rank | Component | Estimated Appearance |
|------|-----------|---------------------|
| 1 | Gypsum Wallboard-Section | ~85% of all details |
| 2 | C Studs-Section | ~65% of all details |
| 3 | Runner Channels-Section | ~55% of all details |
| 4 | Caulking-Section | ~40% of all details |
| 5 | Dimension Lumber-Section | ~35% of all details |
| 6 | Rigid Insulation-Section / 07-INSULATION-RIGID | ~30% of all details |
| 7 | 04-CMU-2 Core-Section | ~25% of all details |
| 8 | Gypsum Sheathing-Section | ~25% of all details |
| 9 | Plywood-Section | ~20% of all details |
| 10 | Resilient Topset Base-Section | ~20% of all details |
| 11 | Bond Beams-Single-Section | ~15% of all details |
| 12 | Reinf Bar Section | ~15% of all details |
| 13 | Joint Sealant and Backer Rod-Section | ~15% of all details |
| 14 | Interior Metal Channels-Section | ~12% of all details |
| 15 | Storefront Center Glazed-Head at Finish-Section | ~10% of all details |

---

## ASSEMBLY RECIPES

Pre-defined layer stacks for common wall types. Read from exterior (left) to interior (right).

### Wood Frame Exterior Wall
```
Siding-Wood Bevel
  Plywood-Section (1/2")
    Dimension Lumber-Section (2x6 stud)
      Rigid Insulation-Section (between studs - batt shown as wavy lines, not a detail item)
    Dimension Lumber-Section (2x6 stud)
  Plywood-Section (interior face - optional)
Gypsum Wallboard-Section (1/2")
```

### Metal Stud Exterior Wall (Stucco)
```
Gypsum Plaster-Section (stucco 7/8")
  07-INSULATION-RIGID (continuous insulation 1-1/2")
    Gypsum Sheathing-Section (5/8" DensGlass)
      C Studs-Section (3-5/8" or 6" stud)
    Gypsum Sheathing-Section (interior)
Gypsum Wallboard-Section (5/8")
```

### 1-Hour Rated Metal Stud Partition
```
Gypsum Wallboard-Section (5/8" Type X)
  Gypsum Wallboard-Section (5/8" Type X - 2nd layer)
    C Studs-Section (3-5/8" stud)
  Gypsum Wallboard-Section (5/8" Type X - 2nd layer)
Gypsum Wallboard-Section (5/8" Type X)
Fire_Rating_Ribbon_1HR (along boundary)
```

### Non-Rated Metal Stud Partition
```
Gypsum Wallboard-Section (5/8")
  C Studs-Section (3-5/8" stud)
Gypsum Wallboard-Section (5/8")
```

### CMU Wall with Furring
```
04-CMU-2 Core-Section (8" CMU)
  Interior Metal Channels-Section (furring channel)
Gypsum Wallboard-Section (5/8")
```

### Storefront at Exterior Stud Wall (Head)
```
Storefront Center Glazed-Head at Finish-Section
  Caulking-Section (perimeter sealant)
    Gypsum Sheathing-Section
      C Studs-Section (header framing)
    07-INSULATION-RIGID
  Gypsum Plaster-Section (stucco)
Gypsum Wallboard-Section (interior)
```

---

## REVIT API PLACEMENT NOTES

### Loading Detail Item Families
```
Family.LoadFamily(doc, familyPath)
```
Detail item families are in the `Detail Items` category (BuiltInCategory.OST_DetailComponents).

### Placing a Detail Component
```csharp
// Point-based placement
doc.Create.NewFamilyInstance(
    point,           // XYZ location
    familySymbol,    // The specific type within the family
    detailView       // The drafting/detail view
);
```

### Key Behaviors
- Detail items exist ONLY in the view they are placed in (view-specific)
- They do NOT appear in 3D views or other sections
- Rotation is controlled by the `Rotation` parameter after placement
- For line-based families, use two points to define start/end
- Layer ordering matters: place back-to-front (exterior to interior) for proper overlap

### Scale Considerations
- At 1/4" = 1'-0", only show major components (studs, GWB, sheathing). Skip fasteners and sealants.
- At 1" = 1'-0", show all standard components. This is the default detail scale.
- At 1-1/2" = 1'-0" and 3" = 1'-0", show fasteners, sealant beads, and fine hardware.

---

## FAMILY FILE LOCATIONS

All 87 detail item families are stored as `.rfa` files within the BD Architect Detail Library:
```
/mnt/d/BDArchitect-DetailLibrary-2025/families/Detail Items/[FAMILY NAME].rfa
```

Preview images (where available):
```
/mnt/d/BDArchitect-DetailLibrary-2025/previews/[CATEGORY]/[DETAIL NAME].png
```
