Technical Document Library
Research-Backed Guidance for Every Project
Research-Backed Guidance for Every Project
Technical Guides - E30
This publication provides a comprehensive overview of engineered wood construction systems for residential, commercial and industrial buildings
Technical Guides -
Technical Topic - TT-040
This publication discusses the placement of holes in the webs of I-joists or rim board when used as blocking for lateral restraint of floor and roof joists
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.
Case Studies - V130
This publication describes how LEVER Architecture used engineered wood to balance design, budget and sustainability goals in a Portland, OR, commercial building project.
Technical Guides - S812
This publication presents the recommended method for the design and fabrication of glued plywood and lumber beams.
Technical Topic - TT-013
This publication answers commonly asked questions about identification marks found on wood structural panels
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-EWG-31
This detail shows APA Rated sheathing panels installed as an open soffit on exposed roof rafters with weather-protected edges.
Typical Details - DT-EWG-32
This detail shows a prefabricated APA wood structural panel roof assembly with purlins installed perpendicular to the supports.
Typical Details - DT-EWG-33
This detail shows a hold down anchor assembly connecting a shear wall to a concrete foundation to resist overturning forces.
Typical Details - DT-EWG-1
This detail shows an APA glued floor system using APA Rated Sturd-I-Floor or sheathing 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-EWG-3
This detail shows APA panel stair treads and risers installed on stringers in two configurations, using plywood, OSB, or composite panels with 8d common nail fastening.
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.
Typical Details - DT-EWG-5
This detail shows APA Rated wall sheathing applied in two orientations- strength axis across or parallel to studs- with weather-resistive barrier and siding on a wood-framed wall.
Typical Details - DT-EWG-6
This detail shows APA Rated lap siding installed over wood structural panel sheathing with a weather-resistive barrier on a wood-framed exterior wall assembly.
Typical Details - DT-EWG-7
This detail shows APA Rated siding panels applied over wood structural panel sheathing with a weather-resistive barrier on a wood-framed wall assembly.
Typical Details - DT-EWG-8
This detail shows APA Rated Sturd-I-Floor panel installation at 16", 20", or 24" o.c. joist spacing with tongue-and-groove edges over a floor framing system.
Typical Details - DT-EWG-9
This detail shows APA Rated Sturd-I-Floor panel installation at 32" or 48" o.c. joist spacing with tongue-and-groove joints over a crawl space floor framing system.
Typical Details - DT-EWG-10
This detail shows APA Rated Sturd-I-Floor 48 o.c. panels installed over a post-and-beam floor framing system with 4x4 posts, 4x girders, and tongue-and-groove panel edges.
Typical Details - DT-EWG-12
This detail shows APA Rated horizontal panel siding applied directly to wall framing in an APA Sturd-I-Wall system.
Typical Details - DT-EWG-13
This detail shows APA Rated vertical panel siding applied directly to wall framing in an APA Sturd-I-Wall system with weather-resistive barrier.
Typical Details - DT-EWG-14
This detail shows brick veneer or masonry cladding installed over APA Rated wood structural panel sheathing.