Step 5: Assemble All Frames and Mount.
Lay the frames together with the back frame on the floor, then the center frame(s) then the front frame(s) on top.
Add the hinges to the frames so that the frames will open up when the case is hung and secured to the wall.
At this point you can add the hardware to lock the front frames together. In my case I used a simple hook and eye latch.
You will need help attaching the frame to the wall. Make sure it is level in all axises. I used two three foot straps to attach the back frame securely to the ceiling joists. When the frames are opened, the top is pulled away from the wall. To prevent this I attached the L brackets to the top of the back frame and secured it to the wall.