12" WSWH Strong-Wall® High-Strength Wood Shearwall (Various Heights)Product Details The WSWH high strength wood shearwall is replacing the WSW wood shearwall. WSWH accessories are compatible only with WSWH panels; use WSW accessories with WSW panels. The Strong Wall WSWH high strength wood shearwall is a prefabricated engineered wood panel that helps structures resist forces resulting from high wind and earthquakes. Combining design flexibility with performance, this code listed shearwall is field adjustable with the