Shear Wall Lumber Framing: Double 2X Framing vs. Single 3X Framing at Adjoining Panel Edges

After the 1994 Northridge earthquake, model codes began requiring 3x lumber framing at adjoining panel edges in higher seismic zones for shear walls with an allowable capacity greater than 350 plf.

This publication is designed for: builders, designers, architects, engineers

This publication provides an evaluation of using double 2x framing members as substitutes when single 3x framing members at adjoining panel edges are specified by code for shear walls. The evaluation is based on a study by APA.

Published by APA — The Engineered Wood Association.