Security Doors Are Great for Store Fronts, Warehouse Entrances, and Indoor/Outdoor Flea Markets.- Incorporates a 3″ Interlocking Curve Slat Design
- Box Spring Doors Consist of a Flat Blue Spring Steel Wrapped Around a 2″ Pipe Shaft, Mounted to a Spring Box
- Storefront Security Doors Built in Accordance with Requirements Specified by Underwriter’s Laboratories Inc.
Alpine’s Economy Box Spring Doors are designed for security and easy operation. Trouble free with minimal maintenance required, Alpine security doors have been proven for use on thousands of installations for business and industry.
Alpine Dawn 3″ Door® curtains incorporate a 3″ interlocking curved slat design. Storefront security doors can be either manually or motor operated. The Dawn 3″ Door® includes a 24 gauge galvanized or paint-primed hood. Locking choices include Hasp-pin type for use with padlocks, or optional LOC-TITE or slide bolts.








