National Custom Hollow Metal

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NCHM Manufactures Stainless Steel, Galvanneal, Lead Lined, Pocket and Arched Door Frames as well as Stainless Steel Spats.

NCHM produces a variety of frames to meet every application, allowing maximum design flexibility without compromising strength and structural integrity.

“Easy” describes our variable frame assembly process. A unique interlocking mitered corner joint creates a quick, clean connection in seconds. Simply insert jambs into the header and bend tabs over to secure the assembly.

Frame Series Thickness Gauge Steel

  • S-416 1-3/4″ 16
  • S-414 1-3/4″ 14
  • S-412 1-3/4″ 12


UL, WHI and Certified labels are available. Lead lining of frames is available where required.

Ideal for fabricating complete frame assemblies on location. Furnished blank or with provisions ready for hardware. Simple, reliable and time-efficient!

Frame Series Thickness Gauge Steel

  • FS-416 1-3/4″ 16
  • FS-414 1-3/4″ 14
  • FS-412 1-3/4″ 12

Our unique Surlock Drywall Corner Connection makes frame installation fast and neat. Frame can be installed after dry walling is complete in as little as four minutes.

Frame Series Thickness Gauge Steel

  • D-416 1-3/4″ 16
  • D-414 1-3/4″ 14