Step 1
assemble left and right side as shown using the parts indicated.
Left side has Tee pointing to right - Right side has Tee pointing to the left.
Step 2
Place floorboard on the floor and then left and right side but do not screw yet.
Step 3
Place the first slanted board into the elbow and once locked in screw all the flanges .
2 flanges to the floorboard - 2 flanges to the wall.
Final step
at the top attache to elbow and 6" pipe with flange and secure to wall.
Final picture