Your post got me to thinking, so I checked out a large gun safe in costco today. Hardly room for my 600mm lens, not to mention my other lenses, cameras, flashes, and accessories. I'm sure I could fit them in if I built shelves, but wooden shelves would not be very smart for fire protection, so I'd need some metal ones.


The gun safes also have some sort of carpet looking material lining them which would be questionable in extreme heat as well. I wonder if they are worth it, as opposed to a good insurance policy.