Vault Doors Acme vault doors are simply the best doors available. In addition to our internal testing our door has been tested and approved by UL for Class 1 and 2. These tests include attack by mechanical tools, electrical tools, and oxyacetylene torches. To meet international requirements our door has also been tested and approved by several of the worlds leading banks and foreign test agencies. The door is designed to be used with a generic vault (grouted or not grouted) or with our UL listed modular vault line. Burglary Resistant Vault Door Specifications Dual control combination locks must be dialed by two people to open. 144 hr., UL listed time lock with reset function, which allows time to be taken off in case of an overwind Door cames with alarm door contact and heat detector. When optional vault vent port is used, door contact automatically opens or closes vent. Either Lexan or Bar daygate are available. Extra large doors can be made to accommodate forklifts or even trucks. Made in America Call for quote