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    Build a Better Homes Build on the virtues of wood. IECC Compliance Options for Wood-Frame Wall Assemblies APA Wall Bracing Calculator

    Recent Publications

    10.16.17 The Performance Path to Energy Code Compliance

    10.09.17 ANSI/APA PRG 320-2017: Standard for Performance-Rated Cross-Laminated Timber

    10.09.17 Fire Protective Options for I-Joist Floor Systems

    09.25.17 Build A Better Home Series (Moisture-Resistant Construction)

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    APA NEWS

    9.11.17 Chinese Delegates Visit U.S. Wood Construction Authorities

    7.14.17 EPA Formaldehyde Ruling: What does it mean for wood I-joists?

    5.1.17 2016 APA Safety and Health Award Winners Announced

    5.1.17 APA Releases 2017 Structural Panel & Engineered Wood Yearbook

    EDUCATION & EVENTS

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    Codes & StandardsSee All >

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    APA is accredited by the American National Standards Institute (ANSI) to develop national consensus standards for engineered wood products.

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    APA HELP DESK

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    FEATURED SITES

    APA Designers Circle GO >
    Designers Circle is an APA technical program geared toward providing building and design professionals with timely technical information and recommendations.

    Performance Panels GO >
    Non-construction applications of engineered wood panels, with detailed product information and manufacturer directory.

    Wood University GO >
    Wood University courses are constructed to give you the knowledge you need to better specify, utilize, or sell engineered wood products.

    APACAD.orgGO >
    More than 250 free CAD details for wood-frame construction. Detalles ahora disponibles en español.

    Technical Research & SPECIAL PROJECTS SEE ALL >

    Research / Force Transfer Around OpeningsGO >
    Force distribution shear wall openings

    Research / Wood Structural Panel & Foam InsulationGO >
    Evaluation of performance under code requirements

    Research / Creep Performance for Structural Insulated PanelsGO >
    A preliminary study

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