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Fire Rated Systems
One-Hour Combustible Floor-Ceiling and Roof-Ceiling Assemblies
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One-Hour Combustible Floor-Ceiling Assemblies - Lumber Joists Form E30

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One-Hour Fire-Rated Glulam Beam (Layup for simple span) Form E30

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19/32" T&G APA Plywood Underlayment, 15/32" APA Wood Structural Panel Subfloor, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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19/32" T&G APA Plywood Underlayment, 15/32" APA Wood Structural Panel Subfloor, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Lightweight or Gypsum Concrete Topping, 15/32" APA Wood Structural Panel Subfloor, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Lightweight or Gypsum Concrete Topping, 15/32" APA Wood Structural Panel Subfloor, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor System with Joists, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor System with Joists, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor Glued and Nailed to I-Joist, 0.026" Galvanized Steel Hat-shaped Furring Channels, Maximum 16" o.c., 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor Glued and Nailed to I-Joist, 0.026" Galvanized Steel Hat-shaped Furring Channels, Maximum 16" o.c., 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor Glued and Nailed to I-Joist, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor Glued and Nailed to I-Joist, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., 1x4 Wood Setting Strips, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., 1x4 Wood Setting Strips, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Hat-Shaped Furring Channels Maximum 24" o.c., 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Hat-Shaped Furring Channels Maximum 24" o.c., 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, Two Layers 1/2" Type X Gypsum Wallboard Taped, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, Two Layers 1/2" Type X Gypsum Wallboard Taped, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., Two Layers 1/2" Type X Gypsum Wallboard Taped, 3-Dimensional Detail Form W305. 2-dimensional detail also available.

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Single-Layer Floor Systems with I-Joists or Trusses: Minimum 23/32" T&G APA Sturd-I-Floor, 0.019" Galvanized Steel Resilient Channels Maximum 16" o.c., Two Layers 1/2" Type X Gypsum Wallboard Taped, 2-Dimensional Detail Form W305. 3-dimensional detail also available.

One-Hour Combustible Load-Bearing Wall Assemblies (back to top)
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APA Rated Siding Exterior, 5/8" Type X Gypsum Sheathing Form W305

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Stucco (Over Self-Furring Metal Lath), APA Rated Sheathing Exposure 1 Plywood or OSB Form W305

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APA Rated Siding Exterior or Other Exterior Finish (Code-Recognized Type), 5/8" Type X Gypsum Sheathing, Minimum 15/32" APA Rated Sheathing Exposure 1 OSB or Plywood Form W305

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APA Rated Siding Exterior or Other Exterior Finish (Code-Recognized Type), 5/8" Type X Gypsum Sheathing, Minimum 7/16" APA Rated Sheathing Exposure 1 OSB or Plywood Form W305

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Minimum 3/8" APA Rated Siding Exterior Plywood Form W305

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Minimum 1/2" APA Rated Siding Exterior Plywood, 1" Rigid Foam Insulation Sheathing; Exterior Finish-Elastomeric Coating, 1" Rigid Foam Insulation Sheathing, Minimum 1/2" APA Rated Sheathing Exposure 1 Plywood Form W305

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Load-Bearing Interior (Chase) Wall System Form W305

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One-Hour Load-Bearing Interior Wall System, 2x4 Studs @ 16" o.c. Form W305

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One-Hour Load-Bearing Wall System, 2x6 Studs @ 16" o.c. Form W305

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One-Hour Load-Bearing Interior Wall System, 2x6 Studs @ 16" o.c. Form W305

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One-Hour Load-Bearing Exterior Wall System, 2x6 Studs @ 16" o.c. Form W305

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One-Hour Fire-Rated Exterior Load-Bearing Wall Assembly Form E30

Two-Hour Load-Bearing Wall Systems (back to top)
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Two-Hour Load-Bearing Interior or Exterior Wall System Form W305

Wood Structural Panel Heavy Timber Roof Construction (back to top)
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Wood Structural Panel Heavy Timber Roof Construction, 3-Dimensional Detail Form E30

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Wood Structural Panel Heavy Timber Roof Construction, 2-Dimensional Detail Form W305

Downloading CAD Details
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Because APA has no control over quality of workmanship or the conditions under which engineered wood products are used, it cannot accept responsibility of product performance or designs as actually constructed. Consult your local jurisdiction or design professional to assure compliance with code, construction and performance requirements.


