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MDI ® DOOR:

MDI® Door is a Certified Green Site

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

...Standard & Custom Engineered Doors & Frames

HM DOOR CORES

Metropolitan offers its customer one of the most diverse door core product lines in the industry for hollow metal doors.  Our cores can meet any and all building code requirements.  The can be rated from 20 minutes up to 3 hours for fire ratings, they can meet the requirements for wind storm, acoustical, tornado, high security & safety for public schools and insulating application requirements.  Download our catalog cut sheet for specific (HM) core details.

 

HONEYCOMB CORE

POLYSTYRENE CORE

POLYURETHANE CORE

STEEL STIFFENED

(CHANNEL SHAPED)

STEEL STIFFENED

(HAT-SHAPED)

MINERAL CORE 

(TEMPERATURE RISE)

NOTE:

METROPOLITAN™ Door Industries reserves the right to make any changes in construction, design or specifications, and to make improvements to its products without prior notice and without incurring any obligation to incorporate such changes in products previously manufactured.

CATALOG DOWNLOAD
HM Door Cores (56KB)

 

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

888.MDI.DOOR

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.