willo logo largeDetention Equipment Systems & Controls | Since 1945

Security Hollow Metal

From small single-opening windows to large multiple-piece window walls, we fabricate all sizes and shapes of hollow metal doors and windows in our Decatur facility. Our hollow metal doors and frames are fabricated in strict conformance to the latest HMMA 863 and ASTM F1450 and ASTM F1592 specifications. Testing is performed here in our facility and strictly observed and documented by Wyle Laboratories of Huntsville, AL, an ISO 9001 registered and certified testing company.

Quality is in the Details

Years of fine tuning the details through listening to our customer's demands and continuously improving our engineering and refining our manufacturing techniques have yielded exceptional product quality. Here are a few examples: (will use photos from the site) Photo Caption 1: All mortar boxes are fully caulked. Photo Caption 2: Fully encapsulated weld nuts at glass stop screws, all frames prepped for full grout. (View from top of frame into vertical mullion). Photo Caption 3: Single-piece door glass stops welded at the corners and shipped factory-attached to the door with temporary screws. Photo Caption 4: Factory drilled and tapped for surface-mounted closers.

For more information about our hollow metal products, please contact our detention equipment department by email at This email address is being protected from spambots. You need JavaScript enabled to view it. or by calling 256.353.7161.