Specifications - Lord and Son Construction, Inc.

3. Close top and bottom edges as integral part of door construction or by
addition of inverted steel channels.
4. Exterior doors shall be insulated with fiberglass insulation (minimum density
0.8 lbs per cubic foot).
B. Standard Steel Frames:
2.4 FABRICATION
1. Provide 16 gauge metal frames (unless otherwise noted on Drawings or as
specified herein) for doors, and other openings, of types and styles as shown
on drawings and schedules. Conceal fastenings, unless otherwise indicated.
Fabricate frames with mitered and full welded corners, unless otherwise
indicated.
a. Provide 14 gauge metal frames at all frames supporting hollow metal doors.
b. All exterior frames and other frames supporting galvanized doors shall be
galvanized.
2. Door Silencers: Except on weatherstripped frames, drill stops to receive 3
silencers on strike jambs of single door frames and 2 silencers on heads of
pair of door frames.
3. Plaster Guards: Provide 26 gage steel plaster guards or mortar boxes,
welded to frame, at back of finish hardware cutouts where mortar or other
material might obstruct hardware operation.
4. Provide floor anchors at each jamb and mullion in addition to required wall
anchors.
A. General
1. Fabricate steel door and frame units to be rigid, neat in appearance and free
from defects, warp or buckle. Wherever practicable, fit and assemble units in
manufacturer's plant. Clearly identify work that cannot be permanently
factory-assembled before shipment, to assure proper assembly at project site.
2. Fabricate exposed faces of doors and panels, including stiles and rails of nonflush
units, from only cold-rolled steel.
3. Fabricate frames, concealed stiffeners, reinforcement, edge channels,
louvers, and moldings from either cold-rolled or hot-rolled steel (at fabricator's
option). All items in exterior doors to be galvanized.
4. Fabricate doors indicated to be galvanized from galvanized sheet steel. Close
top and bottom edges as integral part of door construction or by addition of
inverted galvanized steel channels.
5. Exposed Fasteners: Unless otherwise indicated, provide countersunk flat
MAHG121038 08 11 13 - 3 HOLLOW METAL DOORS AND FRAMES