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MDI® Door is a Certified Green Site

Your Source for Architectural & Commercial Grade Doors, Frames, Hardware & Accessory Products

...Standard & Custom Engineered Doors & Frames


Metropolitan's line of HM doors are tough!  Our commitment to quality, continuous improvement through research and development and using only the best materials and leading technology are the keys to making Metropolitan's doors tough.  

All of the Metropolitan HMD door series are available in a variety of sizes, gauges and elevations (Lites & louvers).  MDI® offers one of the most comprehensive line-ups of HM door cores.  We have standard, ready-to-ship products as well as the capability to custom engineer your doors to meet your specifications.   Metropolitan HM DoorsStandard doors are available as 1 3/4” (45 mm) thick and are available in 14, 16, 18 and 20 gauge commercial quality (A40 galv.) steel and are reinforced to receive architectural hardware in accordance to ANSI A115 standards.  Steel doors are also available in stainless steel, lead-lined (X-ray) and G90 galvanized.  

Bullet resistant, blast resistant and STC (acoustical) door & frame systems are available.

Six Door Cores Available

  • Honeycomb (HMD-HC)

  • Polystyrene insulated (HMD-PS)

  • Polyurethane insulated (HMD-PU)

  • Temperature Rise (HMD-TR)

  • Steel stiffened (different door series): 

    • Channel-shaped steel stiffened (HMD-S)

    • Hat-shaped steel stiffened (HMD-MED)

HMD-HC - Honeycomb  
HMD-PS - Polystyrene  
HMD-PU - Polyurethane  


Need assistance, contact us.

Metropolitan Door Industries Corp.

350 Thorens Avenue

Garden City Park, NY 11040  

MDI® Office Hours:

Monday to Friday

8 am to 5 pm EST

Toll Free: 1-888-634-3667


Local: 516.294.1801

Fax: 516.294.1828

Copyright © 1999-2013 Metropolitan Door Industries Corp.

® MDI and the MDI designed logo are registered trademarks of Metropolitan Door Industries Corp.