Stiffeners shall be spaced vertically not more than 2 m 6 feet and shall be
secured to each stud. Unsupported partitions 6 m 20 feet or more in height
shall be braced with 40 mm 1-1/2 inch channel type horizontal stiffeners.
3.4.5
Corners and Intersection
Corners and intersections of partitions shall be formed of three studs.
Studs at internal corners shall be placed not more than 50 mm 2 inches from
partition intersection.
3.4.6
Wall Openings
One loadbearing metal stud shall be installed at each jamb of door openings
continuous from floor to ceiling, and shall be welded to jamb anchors and
runner tracks. Jack studs shall be attached to runner track on interior of
head of frame, and to runner track or 19 mm 3/4 inch channel at ceiling. A
19 mm 3/4 inch channel reinforcement shall be placed inside the partition
150 to 200 mm 6 to 8 inches above door openings continuously through two
stud spaces on each side of jambs, and welded to the flange. Studs shall
be doubled at wall openings, with not more than 50 mm 2 inches each side of
openings. Stud placement shall be coordinated with supports and
attachments. Intermediate studs above and below openings shall be secured
at same spacing as wall studs. Stud framing shall extend to ceiling or
through ceiling as indicated on drawings. Clearance shall be maintained
between partition and structure to avoid deflection transfer to studs of
partitions which extend through ceiling to structure. Placement of
insulation in stud spaces shall be made inaccessible after studs are
installed.
3.4.7
Bucks, Anchors and Blocking
Installation of bucks, anchors, and blocking shall be coordinated with
electrical and mechanical work to be placed in or behind stud framing, and
shall be coordinated with blocking requirements for support of plumbing
fixtures, toilet partitions, wall cabinets, toilet accessories, hardware
and similar items scheduled for installation.
3.5
WALL FURRING INSTALLATION
Metal furring shall be installed in accordance with ASTM C 754 and ASTM C
841.
3.6
SINGLE/DOUBLE CHANNEL, AND STUDLESS SOLID PARTITION INSTALLATION
Channel studs for single channel and double channel stud partitions shall
be spaced 400 mm 16 inches on centers and shall be secured to ceiling
runners and to floor runners or base clips with wire ties or sheet-metal
screws. Studs on each side of door openings shall be doubled and stiffened
with a 6 x 25 mm 1/4 x l inch flat steel strut, shop-coated with
rust-inhibiting paint. Ends of struts shall be bent and punched for
bolting to floor and ceiling construction. Where rib metal lath is the
plaster base in continuous lengths from ceiling runners to floor runners
for partitions less than 3 m 10 feet in height, steel channel studs may be
excluded from the partition except at locations previously specified for
door openings. Rib lath shall be firmly attached to ceiling runner tracks
or cornerite and to floor runner track or base by wire ties located not
more than 200 mm 8 inches on centers. Studless rib lath partitions shall
be limited to not less than 50 mm 2 inches thick. Partitions shall be as
shown.
SECTION 09200A
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