April 17th, 2025: We've increased our capabilities by adding a second, significantly larger AMADA fiber laser cutting machine to our factory!
At National Custom Hollow Metal (NCHM), quality isn’t just a promise—it’s guaranteed! For more than five decades, we’ve been crafting premium stainless steel doors and frames right here in the USA, and they’re all custom-built by the most skilled craft professionals in the industry. DefendDoor stainless steel box doors are the ideal choice for any building where cleanliness is a must, and we’re ready to give you a custom quote in two hours or less.
The Difference is Quality at National Custom Hollow Metal, and we’ve been manufacturing premium stainless steel doors and frames for five decades and counting! Everything we sell is custom-built by the most experienced craft professionals in the industry, and DefendDoor stainless steel doors and frames remain our top-selling product line. We’re always a phone call away if you have any questions about our products, and we’re ready to give you a quote for box doors in two hours or less!
