APA Wood Structural Panels Over Concrete Slabs

Installing wood flooring over concrete slabs presents unique challenges related to moisture control, proper attachment methods, and maintaining structural integrity. This publication addresses these challenges by providing field-tested solutions for both new construction and remodeling projects in residential and commercial applications.

This publication is designed for: contractors, builders, homeowners

This publication presents three proven installation methods with detailed specifications for each approach. It emphasizes the importance of vapor retarders and the use of pressure-preservative-treated wood products. Each method includes practical considerations for adhesives, mechanical fasteners, insulation options and techniques to ensure long-lasting, moisture-resistant installations.

Methods discussed include:

• Wood structural panels over

  • Sleepers

  • Rigid foam insulation board

  • Above-grade concrete floors

• Wood structural panels attached directly to concrete slab floor

Published by APA — The Engineered Wood Association.