Armor Lock and Safe Sells and Installs American Security and Gardall Wall Safes. Wall Safes are designed to provide hidden protection for documents and miscellaneous valuables. Each Wall Safe is also designed for easy installation between 16" o/c wall studs. Pre-drilled anchor holes and a built-in flange eliminates unnecessary replastering. 2x4 and 2x6 depths available, Electronic, Dial or key locking devices.