4. Test the corners of the frame with a steel try-square and brace it by
nailing, temporarily, several strips diagonally across the corners.
Bottom:
1. Cut seven pieces of flooring 32-1/2" long for the bottom and plane
off the groove of one piece.
2. Turn the frame upside down and nail this piece with the smooth edge
projecting 7/8" over the front side of the frame. Nail the rest of the
flooring so that each piece matches tightly.
Ends: