Boards needed:
H -- Inner frame ends (2" by 6" by 36-1/2")D -- Outer frame ends (2" by 8" by 41")
• Construct the first of the two frame ends by laying an inner piece (H) on top of an outer piece (D) so that H sits 1 1/2 inches in from one end of D, 3 inches in from the other end, and 3/4 inch in from what will be the top edge of D, as shown.
• (Tip: To set this last distance, use a scrap of 3/4-inch plywood as a guide.) Secure with six 2 1/2-inch decking screws, as illustrated. The other frame end should be a mirror image of the first.
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