PS DOORS - Grand Forks, ND
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom access & security doors including swinging doors & sliding doors used as walk doors, equipment doors, silo doors, monorail doors, high pressure openings, high use openings & stack doors. Types include single swing & paired swing doors. Features include structural welded internal frame with 16 gauge steel sheet, insulated heavy duty security hinges, operating hardware & locking devices, bearings & grease fittings, nylon brush seal sweep & security hinges. Also available ventilation or pressure relief ports & monorail notches. Available with 5 years warranty.
psdoors.com/industrial.php

Red River Fabricating, Inc - West Fargo, ND
Manufacturer, Custom Manufacturer
Stairs, Railings, Hatches, Access Doors, Construction & Plumbing Castings, Gratings, Ladders

D & M Industries, Inc. - Fargo, ND
Manufacturer, Service Company
Commercial & Industrial Door Frames & Hardware