Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Market Analysis Reports - MKO-E191
Annual analysis of U.S., Canadian, and global economic factors impacting engineered wood demand, with multi-segment forecasts and historical production data. Available as PDF.
Technical Guides - C800
Describes common engineered wood products: plywood, oriented strand board (OSB), I-joist, glued laminated timber (glulam), structural composite lumber (SCL) and rim board.
Case Studies - T110
This case study explains how a Pennsylvania home builder gained a competitive advantage by adopting advanced framing techniques that deliver lasting energy savings to customers.
Case Studies - N110
This case study discusses how two mid-rise projects used all-wood podiums instead of concrete to cut construction costs, reduce building mass and improve sustainability.
Typical Details - DT-SPR-1
This detail shows angle bracket hanger assembly for supporting steel sprinkler pipe from wood structural members using blocking and optional fastening methods.
Technical Guides - B707
Learn the APA research facility capabilities, including assembly-level testing of roof and floor building components and performance evaluation of lateral force resisting systems
Typical Details - DT-EWG-4
APA Rated sheathing panels installed as subflooring over 2x joists, I-joists, or floor trusses with tongue-and-groove or blocked edges on a wood-framed floor system.
Builder Tip - Z735
This publication includes important tips for storage, handling and jobsite use of APA Performance Rated I-Joists.
Technical Guides - W345 CA
This publication describes connection requirements and application notes for APA Performance Rated Rim Board for Canadian Limit States Design
Standards - PRI-400
This standard contains performance criteria, qualification requirements and quality assurance information for APA Performance Rated I-joists used in residential floors.
Standards - PRI-400 CA
This standard details performance criteria, qualification requirements and quality assurance for APA Performance Rated residential I-joists, limit states design, for use in Canada
Standards - PRI-405
This standard contains performance criteria, qualification requirements & quality assurance information for APA Performance Rated I-joists in commercial roof/floor construction.
System Report - SR-405
This system report provides guidance on fire protection of floors constructed with prefabricated wood I-joist assemblies that comply with 2015, 2018, 2021 and 2024 IRC updates
Technical Topic - TT-126
Publication answers common questions about fire-protective coatings. Certification and inspection of products with fire-protective coatings are generally outside the scope of APA.
Typical Details - DT-IJ-1
This detail outlines backer block installation for single and double I-joist headers.
Technical Topic - TT-125
This publication provides guidance on construction of balconies with solid-sawn dimension lumber attached to I-joist floor systems in supplement to Figure 4 of APA form Z725
Builder Tip - S300
This publication describes how to reduce nail pops through recommended fastener selection and installation
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-SPR-3
This detail shows a coach screw hanger assembly for supporting steel sprinkler pipe from wood framing using filler blocks and sheet metal screws or nails.
Builder Tip - S300 LA
Esta publicación describe cómo reducir los clavos sobresalientes con la selección e instalación recomendada de elementos de fijación.
Data File - D720
This publication identifies the causes of and remedies for excessive floor vibration.
Technical Note - R495
This publication discusses decay fungi and how to prevent/minimize degradation of wood through proper design, storage, construction and maintenance
Typical Details - DT-SPR-4
This detail shows double offset CPVC sprinkler pipe hanger assembly using 2x4 blocking with sheet metal screws or nails, supporting 3" maximum diameter pipe per NFPA 13.