Review on Slotted Concealed Ceiling Covers by Nathan Tsugawa

Solid panel, strong with easy hinge action. I wouldn't recommend it for drywall though. The depth of the frame is greater than that of standard drywall. So if you have a stand in the way or need to move around the frame, use a saw to cut our section of your stand to fit. They recommend a simple glue. for fixing the panel to the wall. But the door is a bit heavy and it would be better if it was fixed with screws. Unfortunately, not all of the pre-drilled screw holes line up for drywall mounting. I think it would be better for wooden frame or some other harder material.