2.2
B. Provide 1-%4-inch hollow metal doors of the type and size indicated on the
Drawings.
C. Fabricate exterior door, panels and frames from galvanized steel sheet ASTM
A653/A653M, G60 or A60.
D. Unless otherwise noted on the drawings, doors shall be reinforced with
impregnated kraft honeycomb core, laminated to the inside faces of both steel
panels.
E. Doors shall have continuous, vertical, interlocking joints at both the lock and
hinge edges. Both edges shall have visible seams.
F. Provide 16-gauge hot dipped galvanized steel for exterior doors and 18-gauge
galvanized steel for interior doors.
G. All doors shall have top and bottom, 14-gauge steel reinforcement channels,
spot-welded into place. Provide 7-gauge hinge reinforcements, 16-gauge lock
reinforcements. Provide 14-gauge closer reinforcements in all doors.
H. Provide steel top caps in all metal doors opening to the exterior.
I. Glazing - Where called for, provide clear, %-inch thick polished wire glass with
a diagonal mesh of woven stainless steel wire in sizes as indicated on Drawings.
J. Insulation - Where indicated on Drawings, provide door with polystyrene
insulation with an R-value of not less than 7.0.
K. Doors shall be cleaned, phosphatized and finished with one coat of baked-on
rust-inhibiting prime paint in accordance with ANSI A250.10.
STEEL FRAMES
A. Provide metal frames for doors and other openings of types and styles suitable
for the doors indicated on the drawings. Conceal fastenings unless otherwise
indicated.
1. 16-gauge galvanized for interior frames
2. 14-gauge hot dipped galvanized for exterior frames.
B. Minimum thickness of hardware reinforcing plates shall be as follows:
Hinge 7 gauge
Strike reinforcements 16 gauge
Flush bolt reinforcements12 gauge
Closer reinforcements 12 gauge
Reinforcements for surface mounted hardware 12 gauge.
We WN bP
File No. 3066.09 Metal Doors and Frames 08100- 2 of 4 December 2017
