: 1/4" or 3/4" plywood is used primarily to prevent "racking" (the box tilting out of square).
: Traditional style where a solid wood frame is attached to the front of the cabinet box. Easier for small shops to keep square. Basic Cabinetmaking Booklet
: Detailed instruction on the "how, what, and why" of using pocket screws for assembly. : 1/4" or 3/4" plywood is used primarily