Instructions / Assembly

Shaftwall
29
INTERIOR FRAMING
The technical content of this literature is eective 5/31/12 and supersedes all previous information. Pub. No. CD-Full Line 5/12
clarkdietrich.com
CT SHAFTWALL/STAIRWELL STUD
Engineered to maintain shaftwall
integrity, ClarkDietrich CT cavity
shaftwall studs are punched with
1" circular knockouts at 12" o.c. for
easy installation of conduit or other
mechanical service lines.
Independent laboratory tests have
demonstrated that the slotting in
the web improves resistance to
thermal and noise transmissions
eectively.
Product
code
Thickness
Stud
depth
(in)
Gauge Mils
Design
thickness (in)
CTN2 25 21 0.0230 2-1/2
CTE2 20 33 0.0346 2-1/2
CTN4 25 21 0.0230 4
CTE4 20 33 0.0346 4
CTE6 20 33 0.0346 6
For installations requiring compliance with NER506, special order products are required.
JTABBED TRACK/JRUNNER
ClarkDietrich J-tabbed track is
used at the floor and ceiling in
shaftwall assemblies. CT-studs
and gypsum shaftliner panels are
friction fit between the top and
bottom J-tabbed track. J-tabbed
tracks have unequal legs with the
longer leg (available in 2-1/4" and
3") installed against the shaft. The
leg provides a backstop for easy
installation of the shaftliner. Three-
inch leg track is typically used as
jamb struts around closure details,
including duct and door openings,
abutments and intersections.
ClarkDietrich J-tabbed track is
punched with fold-up tabs every
12," permitting faster, more ecient
installation.
Product
code
Thickness Size
Gauge Mils
Design
thickness
(in)
Width
(in)
Leg
(in)
TTN (2,3)* 25 21 0.0230
2-1/2
2-1/4
3
4
2-1/4
3
TTE (2,3)* 20 33 0.0346
2-1/2
2-1/4
3
4
2-1/4
3
6
2-1/4
3
*2 designates 2-1/4" leg; 3 designates 3" leg.
Note: Revised ICC Report pending.