National Custom Hollow Metal is America’s leading supplier of stainless steel doors and frames, and all of our products are constructed by the most skilled craft professionals in the industry! Our product lines include TrustShield lead-lined doors, Therma Hold thermal doors, and Sound Safe STC doors, which ensure a quieter working environment no matter where an office is located. And we’re always a phone call away when you’d like a quote for our top-selling line of DefendDoor stainless steel doors and frames!

DefendDoor stainless steel doors are high-quality center-seamed box doors suitable for any office space or commercial center, and they can be constructed to your specifications in your choice of 304 or 316 #4 finish in any size up to 4′ 10 1/4 wide and 12’0” high, and frames up to 10’0” wide and 12’0” high. DefendDoor doors and frames can also be constructed to meet your labeling specifications, including Underwriters’ Laboratories labeling and Warnock-Hersey 20-minute, 45-minute, 90-minute, and three-hour fire door labeling. To give you a same-day quote, we’ll just need the enclosure dimensions and any optional extras you’re interested in, such as window or louvre cut-outs. We also offer fully seam-welded vertical, or three or four-sided seam-welded box doors suitable for facilities where a sterile work environment is a must.

Defendoor stainless steel doors are rust-prohibitive and corrosion-resistant, and never need to be painted. In fact, the only long-term maintenance you’ll ever have to do to keep them looking as good as the day they were delivered is to occasionally wipe them down with water! All NCHM orders include free Quik Ship service, with standard turnaround times of one week for frames and two weeks for doors. We also offer expedited shipping for distributors with rapidly approaching deadlines, with turnaround times as fast as one business day! We love working with just-in-time operations, and all of our doors are carefully cleaned and crated for damage-free delivery.

The Difference is Quality at NCHM, and you can always place your order with confidence because we stand behind all of our products with a one-year warranty! If you have any questions or would like a quote on custom-built DefendDoor box doors in two hours or less, contact us online or at 1-800-334-3070. Email us at [email protected].