Plywood Design Specification, Supplement 2-23: Design and Fabrication of Glued Plywood-Lumber Beams

This publication is a supplement to the APA Plywood Design Specification publication. It presents the recommended method for the design and fabrication of glued plywood and lumber beams. This design method only applies to beams with joints glued with structural adhesive. The recommended method presented in this publication is based on data developed by the U.S. Forest Products Laboratory, supplemented with tests by APA.

This publication is designed for: engineers, designers

Key sections include:

• Design of glued plywood-lumber beams

  • Design considerations

  • Trial section

  • Lumber or SCL flanges

  • Plywood webs

  • Flange-web joints

  • Deflection

  • Stiffeners

  • Lateral stability

• Fabrication of glued plywood-lumber beams

  • Materials

  • Fabrication

  • Test samples

  • Identification

• Design example

• Design Tables covering preliminary allowable moments and shears of beams ranging from 12-inch depth to 48-inch depth.

Published by APA — The Engineered Wood Association.