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Builder Tips: Proper Selection and Installation of APA Plywood Underlayment

Builder Tip

One of the keys to good performance in floors is the right combination of subfloor, underlayment and finish flooring. APA plywood Underlayment panels provide a smooth base for carpet, tile or sheet flooring, while resisting dents and punctures from concentrated loads.

This publication is designed for: builders, contractors

This publication provides an overview of the benefits of APA Underlayment and APA Rated Sturd-I-Floor® panels. It also includes several tips and important considerations for these materials.

Key sections include:

  • APA plywood underlayment installation diagram

  • Tips for handling and installing underlayment

  • Fasteners and fastening schedules

  • Finishing and filling

  • Installing finish flooring

Published by APA — The Engineered Wood Association.