gun room

[Olle]

Originally Posted by Ron Wood

A swinging bookcase is a neat solution. The only problem is the weight. You need a really hefty back frame and hinge set-up. Otherwise, you have to add a roller to the bottom to help carry the weight and that leaves a track on the floor. A hidden cable (or steel rod) and turnbuckle from the top hinge to the bottom outside corner helps with carrying the weight and can be adjusted over time.
Ron

You could hinge it at the center (for example on a piece of pipe and two wheel bearings) to balance the weight. Still, it would lose a lot of the cool factor if you can't show it off to your buddies (and I'm sure you'll be very tempted to do that), so a vault door might be a safer solution.