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This APA Data File provides recommendations for the installation and preparation of underlayment under finish flooring in residential and light commercial applications. Recommendations are also provided for the selection of APA plywood Underlayment, a plywood panel grade in accordance with Voluntary Product Standard PS 1, Structural Plywood. Revised June 2012.
Boise Cascade VersaWorks® Veneer Laminated Timber. Revised October 4, 2023.