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Door Features

MPI custom steel doors are manufactured to the highest industry standards with many features exceeding the minimum requirements set forth in those standards. Fabrication is in accordance with HMMA 860, HMMA 861, HMMA 867 and ANSI A250.8. MPI steel stiffened and polystyrene doors have been tested and found to meet/exceed the requirements of ANSI A250.4, Level A.

Special Purpose Doors

Severe Windstorm Products
MPI doors and frames tested for hurricane resistance at exterior openings

Thermal Rated Products
MPI doors and frames tested for thermal performance

Sound Rated Products
MPI doors and frames tested for sound transmission loss and sound retardant properties

We also produce a full line of STAINLESS STEEL doors and frames with features not available from other hollow metal manufacturers. Find more information here.

Typical Door Construction Details

View Manufacturing Tolerances  PDF Document  >>>

View Guide Specification >>>

Steel Stiffened Door

HMMA 861

22 Ga. Stiffeners Spaced 6” apart Standard

2.5 lb. Density Mineral Fiber Standard

7 Ga. Hinge Reinforcement Standard

11 Ga. Lock Tabs Standard

Standard Edge Seam Tack Welded, Filled and Finished Smooth
Open Seam and Continuously Welded Available

Steel Stiffened Door

Polystyrene Door

HMMA 867

Rigid Pre-formed Closed Cell Board 1 lb. Density
   Core U-Factor .156
   Conforms to ASTM C578, Type 1

7 Ga. Hinge Reinforcement Standard

11 Ga. Lock Tabs Standard

Standard Edge Seam Tack Welded, Filled and Finished Smooth
Open Seam Available

blubutn

NOW with embossed panel designs. 
Multiple options available >>>

PolyS Door

Door Elevations

Vision Light Frames and Louvers are flush design integral with door standard

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