What you will need:
STEP 1: Cut the 2 side boards as shown.
STEP 2: Mount the first crate 4" inches down one side board so that the bottom of the crate and ground are parallel.
STEP 3: Mount the remaining crates to the side, and then mount the other side board to the crates.
STEP 4: Finally, attach the top board by screwing through the top board at an angle into the side boards.
