Those of us who work alone have to find ways to make up for the lack of another pair of hands. With the aid of these squaring blocks, I can assemble and glue up any cabinet carcass without help. I use 7" x 7" squares of 3/4" plywood with intersecting dadoes, as shown at right. A 1" diameter hole in the middle is drilled so I can see the corners clearly. It works best to have blocks at both top and bottom of the carcass. - Craig Wilson; Hampton, Virginia