Composites USA - North East, MD
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of tanks, vessels, ducts & associated fittings such as doors including access doors. Access doors are available in flush types & flanged stand-off types. Flush type access doors are available in stainless steel materials in dia. ranging from 4 in. up to 36 in. Options include hinged covers & handles. Flanged type access doors are available in header dia. & widths ranging from 4 in. up to 36 in. Options include stainless steel bolt sets & hinges for covers. Products meet ASME standards & are UL® certified & FM approved.

Shore Sheet Metal - Salisbury, MD
Custom Manufacturer
Custom manufacturer of crawl space access doors made from 22 ga. G-90 galvanized steel for retrofit applications. Doors are available with 16 ga. welded frames & 3/4 in. rigid insulation.

Trippe Supply Co., Inc. - Capitol Heights, MD
Distributor, Custom Manufacturer, Service Company
Distributor of flush mount, dry wall & fire rated doors.: Karp
Brand Names: Karp

AllDoorSolutions.com - Lanham, MD
Distributor, Service Company
Distributor of doors and replacement parts. Products include knobs, hinges, overhead door springs, cables, tracks, steel fire doors, panic devices, locks, patio sliders, glass emergency enclosures, replacement glass, hollow metal doors and slats for rolling doors.

East Jordan Iron Works - Finksburg, MD
Distributor
Sidewalk

Mid-Atlantic Materials, Inc. - Baltimore, MD
Distributor
Standard, fire rated & specialty, in-stock;Distributor
Brand Names: Karp

Mid-Atlantic Materials, Inc. - Beltsville, MD
Distributor
Standard, fire rated & specialty;Distributor
Brand Names: Karp

Stanley Access Technologies - Jessup, MD
Distributor, Manufacturer, Service Company
Manufacturer & service of access doors.

Overhead Door Co. of Baltimore, Inc. - Baltimore, MD
Distributor, Service Company
Distributor Of Doors; Installation Service

Low Country International, Inc. - Silver Spring, MD
Distributor
Handicapped, Door Handles

Kipp Visual Systems - Baltimore, MD
Distributor, Service Company
Distributor of Design, Install Audio, Video, & Security Systems; Access Control, CCTV, Video Imaging, TV, VCR, Camera, Digital Systems, Mounts, Screens, Cable, Panasonic, JVC, Phillips, HDTV, Intercom, Survellance Service
Brand Names: IDenticard

Washington Roofing Products Co. - Rockville, MD
Distributor
Distributor of access doors.

AMCOR Flexibles - Hagerstown, MD
Distributor, Manufacturer, Custom Manufacturer
Distributor of packaging materials.

ABC Roofing - Waldorf, MD
Distributor
Distributor

Capitol Building Supply - Hagerstown, MD
Distributor
Distributor of plastic, fire rated, drywall, plaster, acoustical, masonry access doors & roof hatches.
Brand Names: Williams Brothers

Seidman Glass Co. - Baltimore, MD
Service Company
Installation;Service

Ceco Door Products - Jessup, MD
Distributor, Manufacturer
Manufacturer & distributor of steel doors & frames.