Step 1
Insert the stand off bracket into the top of the post. Slide other end of the post over the short foot. Mount to the outside, and in front of, the roll down door guide rails. Level and lag the short foot into the concrete. Repeat on other side of bay door.

Step 2
To assemble the gate: Mount the hinges, barrel side to rivets, 1/2" below/above the sliders. Use the flat head self drilling/self tapping screws.

Step 3
Mount the caster to bottom edge of gate. Use the  round head screws.

Step 4
Mount the steel shroud (with the brass lock body) over the center rivet. Position it as far forward as possible. Ensure this shroud is in line vertically with the gate. Use the round head screws.

Step 5
Snap the plastic handle on, ensuring it is snug and flat.

Step 6
Stand the gate up with the hinges against the post & make a mark on the post where the underside of the hinge is. Open the hinge and mount 3/8" above the mark, & install one screw only, top and bottom. Repeat for the other gate & pull them together to ensure they are plumb when they meet. Install balance of hinge screws.

Step 7
Snap receiver plate onto slamlock. Pull both gates together to meet in the middle, and mark the location of receiver plate. Unlock and screw into place. Attach the steel handle to the gate with the receiver plate.

Step 8
Mount the U bracket towards to top of the gate on the same gate as the receiver plate.

Step 9
Mount the shoot bolt at the bottom edge of the receiver gate; lock and then center the gates in the opening; mark, and drill the pin receiver hole in the floor.