INTRODUCTION Modem technology has made it possible to manufacture a wide array of engineered wood products. These include oriented strand board, glued laminated timbers, and I-shaped wooden joists. These engineered products have load capacities clearly defined by their manufacturers and will therefore not be further discussed. There are also innumerable sheet goods made from wood such as masonite, medite, lauan, and hardwood plywoods. The structural integrity of these products is undefined. They are not intended for weight bearing applications and will not be further discussed. This text will focus exclusively on the design techniques regarding structural plywood.