Rated 5 / 5 from 1 reviews
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National We build so much more than a door or frame, since we are committed to a higher level of craftsmanship and attention to detail. We provide superior products and outstanding service with industry-leading turnaround times for custom orders. NCHM has the dedication to meet all customers' needs, every day.

Under the ownership of the Mathews family, our long-standing tradition of excellence continues as the cornerstone of our success. When it comes to choosing the best source for all your custom-built and pre-engineered steel doors and frames, you can depend on NCHM for exceptional quality, service and value.
Services
Pocket & Arched
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The attached pocket comes as a welded option and is a pre-constructed pocket for the pocket door to slide into. Save time by just lifting this pocket door frame in place instead of having to build a wood pocket in the wall.
Galvanneal
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NCHM offers added flexibility when fabricating standard or complex frame assembles. Purchased K/D to Weld allows local fabrications flexibility and eliminates costly shipping and time loss. Furnished blank or with provisions for hardware, and are available in 12'0 lengths without splice or seams.
Stainless Steel Frames
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NCHM produces a variety of frames to meet every application, allowing maximum design flexibility without compromising strength and structural integrity.
Lead Lined
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Our TrustShield Lead Lined doors are available in 16, 14 or 12 gauge galvanneal or 16, 14 or 12 gauge stainless steel construction with a continuous sheet of lead from 1/32 thick up to 1/8 thick, laminated to door skin and a sheet of high density polystyrene. The lead sheet extends the full width and height of the door.
Stainless Steel
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DP Series doors are insulated and sound deadened by a permanently laminated (bonded) solid slab of expanded polystyrene foam core on the inside of each face skin. The complete unit is closed with 14-gauge steel, perimeter channels, spot-welded at 8 on center. Doors have square edges with exposed stitch welded full height hairline seams.
Reviews (1)
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Grant Garrett
Jan 15, 2018
Great people that run a great company that stands behind their products. Highly recommend.