Available at last, the Lock'er Down line of wall safes. Our first model is the LD5000, which fits between wall studs on 16" centers. The interior is telescopic to fit in 2 X 4 or 2 X 6 stud walls. There are cheaper wall safes out there, but the operative word is "Cheaper". Our safe are made of 12 gauge domestic cold rolled steel with the exception of the telescopic rear panel made of 16 gauge to reduce weight. We use our 3 point lock bar system and these safes are only available with our Lock'er Down Metal Cased Electronic Lock. Shelves are available as an option. Please contact us with any questions.