Step 9.
Place a 28” 2x4 (2D) in the bracket and fasten it with 1 3/4” washer
head screws.
Step 10.
Repeat steps 8-9 for the opposite side.
Step 11.
Place a 104” 2x4 on the outside of the 54” 4x4 posts and fasten it
with 3” lags.
Keep the 2x4 centered and up against the vinyl post caps.
Step 8.
Place the 2x4 support bracket (2J) on the 74” 4x4 post on the
lower platform.
Measure 46” inches up from the floorboards to the inside of the
bracket to position it correctly then fasten it with 1 3/4” washer
head screws.