Step 7: Cover Frame with Plywood
A. Place frame onto plywood sheet and trace outline of outer triangle with pencil.
B. Safely, Use circular saw to follow the triangle outline, place aside.
C. With second sheet of plywood use tape measure and pencil to draw a line at 17” using the “V” method at two points and connecting them with your pencil and the leftover board (like a big ruler).
D. Safely make cut.
E. Then from the opposite edge (perpendicular to the one you just cut) measure 7” from the edge at two points, draw a line across, verify that you have a square that is 7”x17”.
F. Safely make cut.
G. Repeat process twice more until you have 3 7”x17” squares.
H. Using drill, with same drill bit, start pilot holes ¼” from the top and bottom (17” side) at three inches from each end and one more in the middle. (be careful not to try and drill a screw at the same place that a screw is holding the frame together)
I. Repeat the process for the other two “sides”
J. Secure the sides to the frame with the wood-screws and screwdriver.
K. Similarly, place the triangle plywood piece on top (either side) and drill pilot holes ¼” from the edge and secure top to frame with 3 evenly placed screws per side.