Rim board

Rim Board is a precision-engineered wood product that is specifically designed for today’s engineered-floor systems.

Features and Benefits

    • Resists twisting, cupping, cracking and warping
    • Available in depths of 9 1/2″, 11 7/8″, 14″, 16″
    • 12′ lengths offer easy handling and installation
    • Each board is edge coated and the units are paper wrapped for protection against the elements
    • Units are minor bundled
    • Engineered to have the structural strength to transfer both vertical and lateral loads
    • Designed and manufactured for use as a perimeter board for floor and roof joists in residential and light commercial construction
    • Smooth stable nailing surface
    • No core voids and will not delaminate
    • Rim Board has edgewise bending properties and can be used to span openings of 4′ or less
    • Manufactured in accordance with ICC – ES AC124, Acceptance Criteria for Wood based Rim Board Products and APA Rim Board Plus
    • Rim Board is available as SFI® Chain of Custody certified.  FSC® is available upon request.

Building Sustainably

Rim Board can help your project qualify for points under green programs such as LEED®. Rim Board is certified by the NAHB Research Center as a Green-Approved Product under the National Green Building Standard.

Information on how Raised Floors help in “Reducing Carbon Footprint” by the APA (The Engineered Wood Assoc): APA Publications


Visit the resources page for more information on product documents, forest certification, APA publications, seminars & trade shows.

Rim Board—Carries the load

For affordable flooring systems that lay flat and true, experienced builders trust Norbord® Rim Board. Together with the I-joists, it’s the Rim Board that carries the floor’s weight from above. For a durable long-lasting floor that installs quickly, and carries the load for years of use, you need the dimensional consistency, strength and structural reliability of APA performance-rated Rim Board products from Norbord.

Rim Board / Rim Board Plus

Norbord quality in engineered flooring

  • Economical alternatives for engineered flooring systems
  • APA Performance-Rated Rim Board for I-joist systems
  • Reliable supply, sustainably sourced
  • Norbord guaranteed
  • Available in two grades: 1″ Rim Board and enhanced performance 1″ or 1 1/8″ Rim Board Plus


Multipurpose strength for engineered construction

  • Economical alternatives for engineered flooring systems
  • Strong, stable Rim Board for I-joist systems
  • ICC-ES code-evaluated, APA Quality Assured
  • Approved for use as a rim board
  • Cost-competitive, reliable supply, sustainably sourced
  • Norbord guaranteed

Norbord Rim Board and Rim Board Plus products are available with termite-resistant treatment. Available upon request. Conditions apply. Rim Board Sizes


Rim Board/ Rim Board Plus

  • APA quality assured
  • CCMC (13221-L)
  • SFI & PEFC Chain of Custody

0.8E Durastrand Rimboard

  • APA quality assured
  • CCMC (13143-R)
  • SFI & PEFC Chain of Custody