Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Typical Details - DT-FPF-2
This detail shows 1/2" gypsum board fastened to the bottom flange of an I-joist floor assembly for fire protection per IRC Section R702.3.1.
Standards - S350
Performance requirements, adhesive bond performance, panel construction and workmanship, dimensions and tolerances, marking and moisture content of wood structural panels.
Typical Details - DT-EWG-2
This detail shows APA Rated sheathing panels installed as roof decking over rafters or trusses with panel clips, asphalt or wood shingles, and proper edge and joint spacing.
Typical Details - DT-FR-2
This detail shows a fire-rated wall assembly using wood structural panel sheathing over studs with gypsum wallboard, fire protective membrane, and glass fiber insulation.
Typical Details - DT-GB-2
This detail shows a glulam beam connection to an end wall with flush floor joists or I-joists connected to the beam.
Typical Details - DT-BB-2
This detail shows chimney counter flashing detail of base flashing over shingle underlayment and roof deck, with counter flashing embedded in brick mortar joint.
Typical Details - DT-IJ-2
This detail shows cantilevered double I-joists supporting a vertical building offset and specifies connections to the top plate, blocking panels, and Rim Board or APA WSP closure.
Typical Details - DT-SPR-2
This detail shows ceiling flange hanger installation for supporting steel sprinkler system pipes from engineered wood ceiling joists.
Typical Details - DT-SIP-2
This detail shows roof SIPs sloped up to form a ridge and connections of the SIPs to framing members with panel screws, while also showing tape, sealant, and roofing materials.
Typical Details - DT-GH-2
This detail shows a connection of a garage door header and an end wall using a steel plate fastened to a solid wood post, glulam column or studs.
Typical Details - DT-AF-2
This detail shows an insulated three-stud outside corner (California corner) framing assembly.
Typical Details - DT-WB-2
This detail shows the alternate braced wall bracing method and its requirements including sheathing fastening, framing requirements, and foundation anchorage.
Typical Details - DT-WOM-2
This cross-section detail shows APA panel deck attachment to metal C or box section joist using hardened screwshank nails or self-tapping fasteners with optional adhesive.
Typical Details - DT-CWA-2
R20 advanced framing wall assembly at 24" o.c. minimum with insulated corner, engineered wood or lumber header, R19 compressed fiberglass batts & wood structural panel sheathing.
Typical Details - DT-FTO-2
This detail shows the blocking requirement for the metal strap at the exterior or interior of a force transfer around the opening shear wall.
Typical Details - DT-WWR-2
This detail shows a wind-resistive roof assembly with hot-mopped built-up roofing over APA-rated plywood sheathing and structural framing, rated U.L. Class 90.
Typical Details - DT-WRR-2
This detail shows wood roof assembly with plywood decking over purlins/trusses with two-ply asphalt glass fiber mat roofing system, rated UL Class 90
Technical Topic - TT-021
Table of recommended uniform live loads for PS 1 APA 303 siding when used as open soffit or combined roof decking-ceiling with long dimension perpendicular to supports.
Technical Topic - TT-129
This publication presents four construction details for incorporating 2-inch-thick foundation foam insulation into residential I-joist floor assemblies.
Standards - L870
This publication is the national standard for performance requirements and marking plywood for construction and industrial uses.
Typical Details - DT-SPR-17
This detail shows seismic bracing web blocking and cross member installation for I-joists to resist loads perpendicular to joist direction.
Typical Details - DT-FR-24
This detail shows a heavy timber roof assembly with wood structural panels, featuring heavy timber or glulam beams supporting tongue-and-groove wood decking with built-up roofing.
Typical Details - DT-FR-21
This detail shows single-layer wood I-joist floor system with 23/32" T&G APA rated sheathing and two layers of 1/2" gypsum wallboard ceiling providing a fire-rated assembly.
Technical Guides - S812
This publication presents the recommended method for the design and fabrication of glued plywood and lumber beams.
Typical Details - DT-FR-7
Fire-rated wall assembly of two UL-rated configurations (U330 and U335) with different exterior finishes over wood framing with mineral wool or glass fiber insulation.
Typical Details - DT-FR-20
Single-layer tongue and groove APA-rated sheathing over wood I-joists with resilient channels and two layers of gypsum wallboard ceiling assembly for residential construction.
Technical Note - Q225
This publication contains uniform load tables for APA trademarked wood structural panels that are manufactured and qualified in accordance with PS 1, PS 2 and APA PRP-108
Technical Topic - TT-024
This publication discusses how to avoid floor panel puncture from drywall carts by consulting PS 2 for minimum concentrated static loads and heavy concentrated loads
Technical Topic - TT-054
This publication provides guidance on how to comply with NIST panel thickness regulations while still providing for traditional specifications used in the U.S. model building codes
Technical Guides - D510
This publication describes recommended design capacities (ASD) and design methods for wood structural panels manufactured under PS 1 and PS 2 and APA Performance Standard PRP-108.
Product Advisory - SP-1185
This publication provides test results for imported plywood panels from Brazil, evaluated for conformance to U.S. Product Standard PS 1
Technical Topic - TT-055
This publication discusses the SIZED FOR SPACING notation in the APA trademark stamp and the option of trimming panels slightly to encourage proper panel spacing
Technical Guides - A236
This publication describes the importance of adhering to PS 1 plywood specifications to meet the material performance criteria outlined in ACI 318 & ACI 347, as mandated by the IBC
Technical Guides - Y510
This publication includes section properties, recommended design stresses and design methods for plywood manufactured under Voluntary Product Standard PS 1
Excerpt - E30X-PSS
This publication is an excerpt from the APA Engineered Wood Construction Guide, providing product descriptions and specification recommendations for wood structural panels
Standards - E445
This publication describes requirements and test methods for APA Performance Rated Panels (APA Rated Sturd-I-Floor®, APA Rated Sheathing and APA Rated Siding).
Typical Details - DT-FPF-4
This detail shows an I-joist floor assembly with 1/2" gypsum board placed above the bottom flange for fire protection per IRC Section R503.
Typical Details - DT-FPF-3
This detail shows 1/2" gypsum board installed at I-joist web holes for fire protection, shown in two configurations per IRC Section R702.3.1.
Typical Details - DT-FPF-1
This detail shows 1/2" gypsum board or 5/8" wood structural panel installed at the bottom flange of an I-joist floor assembly for fire protection per IRC Section R702.3.
Technical Guides - A236 LA
las especificaciones de la norma PS 1 para madera contrachapada para cumplir con los criterios de rendimiento de los materiales establecidos en ACI 318/347, según lo exige el IBC
Technical Topic - TT-128
This publication discusses the results of a series of CAN/ULC-S102 tests of flame-spread rating (FSR) and smoke developed classification (SDC) for OSB sheathing in Canada
Typical Details - DT-FR-11
One-hour fire-rated interior partition wall assembly with 2x4 wood studs at 16” o.c., 3-1/2-inch mineral wool insulation, and 5/8-inch Type X gypsum wallboard on both sides.
Technical Guides - Q701
This publication is designed for use by mills as an aid in manufacturing and grading Canadian Standards Association (CSA) plywood panels.
Technical Topic - TT-135
Provides recommendations for hole size and segment length for glulam rim board for situations where holes are not specified in the construction documents or shop drawings.
Data File - L335
This publication provides recommendations for the installation and preparation of underlayment under finish flooring in residential and light commercial applications
Research Report - M410
This report contains research results on force transfer around openings (FTAO). This study was a joint effort between APA, the USDA FPL and the UBC.
Builder Tip - S300
This publication describes how to reduce nail pops through recommended fastener selection and installation
Builder Tip - N335
This publication provides step-by-step instructions for roof sheathing installation
Technical Topic - TT-078
This publication provides suggested I-joist blocking details, which may be used when local codes require prescriptive blocking in the space adjacent to starter joists or rim board.
Technical Topic - TT-022
This publication discusses the structural superiority of using APA Performance Rated Rim Boards with prefabricated wood I-joists rather than sawn lumber rim boards.
Data File - Y240
This publication provides information on member sizes and layup, design stresses, column design equations and design tables and examples.
Typical Details - DT-AF-6
This detail shows the use of a single header with a width less than the wall to create more space for insulation.
Technical Note - Y245
This publication describes the natural fire resistance of glulam beams and columns and provides fire endurance calculation methods
Technical Note - X227
This publication discusses recommended maximum caster loadings for various wheel types and sizes on bare plywood, Plyron and overlaid plywood surfaces.
Builder Tip - S300 LA
Esta publicación describe cómo reducir los clavos sobresalientes con la selección e instalación recomendada de elementos de fijación.
Technical Topic - TT-134
Inboard rigid foam reduces WSP shear wall strength. TT-134 gives tested nail size/spacing requirements to restore code-equivalent seismic capacity.