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Kohtler Elevator Industries manufactures “Commercial Leveled Grade” carbon steel of 14 gauge minimum thicknesses. Doors are rated for 1-1/2 hour fire resistance and UL labeled up to 120 ½ in of height on all of our elevator doors (single speed, two speed, center opening or multi-section center opening).
Our Door Panel Construction:
Each door consists on No.16 gauge steel corridor and a No. 14 gauge shaft panel, as well as hat-shaped stiffeners of No. 16 gauge steel plug-welded to the faces of the door. No. 14 top and bottom channels spot-welded at each end of the door. Each elevator door receives good grade paint on the outside.
The clad of the doors could be prime finish, painted (“powder coating finish” ), plastic laminated, stainless to the high-end multi-grain, or decorative metal elevator entrances.