APA - The Engineered Wood Association

apaIjoists.org

APA Performance Rated I-Joists

APA Performance Rated I-joists (PRI) are "I"-shaped engineered wood structural members that offer strength, versatility and economy for use in residential and light commercial applications. I-joists are comprised of top and bottom flanges of various widths united with webs of various depths. The flanges resist common bending stresses, and the web provides outstanding shear performance.

New Sprinkler Details Available

New design details from APA show how to correctly attach sprinkler systems to APA I-joists. The design details illustrate a variety of sprinkler attachments that incorporate fasteners permitted by the National Fire Protection Association (NFPA), design load assumptions published by the NFPA, and published design fastener capacities. Download the new Technical Note: Sprinkler Installation for APA Performance Rated I-Joists.

Design and Technical Information

If you're looking for detailed and technical information on I-joists, you may wish to jump directly to the I-joist section of the Publications Store. Here you will find a complete listing of all APA publications featuring I-joists, including case studies, technical sheets, builder tips and more. This section is searchable by keyword.

CAD Information

For floor framing details in CAD format, go to www.apacad.org. Details can be downloaded in .dwf, .dwg, .dxf or .pdf formats. A variety of I-joist floor framing and sprinkler mounting details are available.

Resource Efficiency

I-joists can be manufactured using solid sawn lumber or structural composite lumber for the flange components, and plywood or oriented strand board for the web. This versatility allows the manufacturer to make the most efficient use of wood fiber resources in their region while producing products that consistently perform to known standards.

Consistent Performance

APA Performance Rated I-joists are manufactured to specific dimensions commonly used in residential construction. They are ideal for long spans and readily available from most builder supply sources.

The APA Mark of Quality

APA trademarks appear only on products manufactured by APA member mills. The mark signifies that panel quality is subject to verification through APA audit– a procedure designed to assure manufacture in conformance with APA performance standards or the standard shown in the mark.

Related Publications

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Related Product Reports

APA Green Verification Report GR-L252, IB Series I-Joists, International Beams, Inc.
  • PDF 141K, Free Download
APA Product Report L252(C), IB Series I-Joists, International Beams, Inc., Canadian Version
  • PDF 113K, Free Download
APA Product Report L310C, AJS® Series I-Joists, Boise Cascade Company for Canada
  • PDF 109K, Free Download
APA Product Report L315C, PKI Series I-Joists, Limit States Design, PinkWood Ltd.
  • PDF 221K, Free Download
APA Product Report L405, Commercial I-Joists
  • PDF 100K, Free Download
APA Product Report PR-E730, Qualified Wood I-Joists with Low Formaldehyde Emissions
  • PDF 91K, Free Download
APA Product Report PR-L238, Louisiana-Pacific Corporation
  • PDF 127K, Free Download
APA Product Report PR-L252, International Beams
  • PDF 109K, Free Download
APA Product Report PR-L255, Georgia-Pacific Wood Products LLC
  • PDF 97K, Free Download
APA Product Report PR-L256, Wood I Beam™: Series I-Joists GP
  • PDF 95K, Free Download
APA Product Report PR-L259, Roseburg Forest Products Company
  • PDF 115K, Free Download
APA Product Report PR-L261, Anthony EACOM, Inc.
  • PDF 103K, Free Download
APA Product Report PR-L261C, Anthony EACOM, Inc.
  • PDF 102K, Free Download
APA Product Report PR-L262, Pacific Woodtech Corp.
  • PDF 117K, Free Download
APA Product Report PR-L273, Georgia-Pacific Wood Products LLC
  • PDF 98K, Free Download
APA Product Report PR-L274, Nordic Engineered Wood
  • PDF 111K, Free Download
APA Product Report PR-L274C, Nordic Engineered Wood, Canadian Edition
  • PDF 113K, Free Download
APA Product Report PR-L288, Broadspan® "S" Series I-Joists, GP Roxboro
  • PDF 95K, Free Download
APA Product Report PR-L310, AJS® Series I-Joists, Boise Cascade Co.
  • PDF 98K, Free Download
APA Product Report PR-S201, Fire-Rated Assemblies, Boise Cascade Wood Products L.L.C.
  • PDF 881K, Free Download
Product Report PR-L315, PKI Series I-Joists, PinkWood Ltd.
  • PDF 218K, Free Download

Product Manufacturers (I-Joist)


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FREE CAD DETAILS


Free CAD details from APA at APACAD.org

Visit APACAD.org for more than 250 free CAD details for wood-frame construction.