Technical
Document
Plank and Large Panel
Stabilizer Bars
Application Guide
Plank and Large Panel
Ceiling Systems
USG® Logix™ Integrated Ceiling System has created the need for secondary
Market demands for plank and large panel ceilings systems such as the
lateral stabilization of the suspension system members to ensure system
integrity.
USG has a long history of product development and innovation for suspended
ceiling systems in plank and large panel ceilings systems and continues
to commit resources to this endeavor. We have thoroughly examined this
condition and the ndings of this study as well as our recommendations are
presented in this guide to assist in the understanding, specication and
installation of this ceiling application.
USG Logix™ Integrated Ceiling Sysem
Stabilizer Bars
Introduction
Features and Benets – Versatile engineered stabilizer designs provide support, security and accessibility.
– Factory-engineered solutions provide system rigidity in large module applications and offers quick installation
reducing eld labor time.
– Available in numerous dimensions to facilitate fast delivery.
– Durable galvanized steel construction.
– Accessible stabilizer bars feature factory-engineered capture tabs prevent panel detachment and lip out.
– Accessible stabilizer bars feature adjustable stab tabs secure bars onto the panel.
– Accessible stabilizer bars feature bulb tabs hook over the grid to prevent detachment, maintain lateral
alignment and provide access.
Applications – All interior general use areas
Guidelines – A large panel is considered any panel that is equal to or longer than 5 feet and/or wider than 30 inches.
– In large modules requiring secondary stabilization, the stabilizer bar is acting as a cross tee.
– If panel length is ≥ 60 inches then one stabilizer is required at midpoint.
– If panel length is ≥ 96 inches then two stabilizer bars are required at the 1/3 and 2/3 points.
– Cross tees ≥ 96 inches used in large modules shall have hanger wires installed min. 4ft. oc.
– Plank and large metal panels requiring secondary stabilization shall use standard or locking stabilizer bars.
– Hanger wire spacing surrounding plank and large panels weighing more than 2lbs./SF such as wood panels
shall not exceed 4ft. oc.
2 Application Guide Plank and Large Panel Stabilizer Bars
Stabilizer Bars
Description
USG offers a variety of stabilizer bars to provide rigid support for ceiling suspension systems. Specially
notched safety bars attach to the main tees and cross tees preventing the tee ends from spreading, and
enhance the rigidity of ceiling modules.USG stabilizer bars are available in different sizes and options
for various applications. USG stabilizer bars are a unique, factory engineered solution that meets the
requirements for large module and seismic ceiling installations while enhancing system performance,
safety and accessibility.
Standard Stabilizer Bar General Applications
– Factory-engineered solution provides system rigidity in general
applications and offers quick installation reducing eld labor time.
– Availability of six different varieties to meet preference
requirements with fast delivery.
– Durable galvanized steel construction.
Locking Stabilizer Bar Seismic Applications
Accessible Stabilizer Bar Plank and Large Panel Ceiling Systems
– Factory-engineered solution provides system rigidity in seismic
applications and offers quick installation reducing eld labor time.
– Availability of six different varieties to meet preference
requirements with fast delivery.
– Durable galvanized steel construction.
– Factory-engineered notches prevent transversal movement.
– Adjustable locking tabs secure bars onto the tees.
– Versatile engineered design provides support, security and
accessibility.
– Factory-engineered solution provides system rigidity in large
module applications and offers quick installation reducing eld
labor time.
– Availability of six different dimensions to offer fast delivery.
– Durable galvanized steel construction.
– Factory-engineered capture tabs prevent panel detachment
and lip out.
– Adjustable stab tabs secure bars onto the panel.
– Bulb tabs hook over the grid to prevent detachment,
maintain lateral alignment and provide access.
Plank and Large Panel Stabilizer Bars Application Guide 3
General Applications
Standard Stabilizer Bars
CC1530
CC2520
CC15-5
CC15-4-2
CC15-4
309 Stabilizer Bar
2 ft. 6 in. (30") center to center
209 Stabilizer Bar
1 ft. 8 in. (20") center to center
notch spacing
58 Stabilizer Bar
48 Stabilizer Bar notched 28 on center
2 ft. (24") center to center
notch spacing
48 Stabilizer Bar
notch spacing
5 ft. (60") center to center
notch spacing
2 ft. (24") center to center
notch spacing
4 ft. (48") center to center
notch spacing
4 ft. (48") center to center
CC15-3
CC15-2
CC15-1
4 Application Guide Plank and Large Panel Stabilizer Bars
38 Stabilizer Bar
3 ft. (36") center to center
notch spacing
28 Stabilizer Bar
2 ft. (24") center to center
notch spacing
18 Stabilizer Bar
1 ft. (12") center to center
notch spacing
notch spacing
Seismic Applications
Locking Stabilizer Bars
SB12
SB24
SB36
SB48
18 Stabilizer Bar
1 ft. (12") center to center
notch spacing
28 Stabilizer Bar
2 ft. (24") center to center
notch spacing
38 Stabilizer Bar
3 ft. (36") center to center
notch spacing
48 Stabilizer Bar
4 ft. (48") center to center
notch spacing
SB48-24
SB60
Plank and Large Panel Stabilizer Bars Application Guide 5
48 Stabilizer Bar notched 28 on center
2 ft. (24") center to center
notch spacing
58 Stabilizer Bar
2 ft. (24") center to center
notch spacing
4 ft. (48") center to center
notch spacing
5 ft. (60") center to center
notch spacing
Accessible Stabilizer Bar
Plank and Large Panel Applications
ASB24
ASB30
ASB48
249 Stabilizer Bar
309 Stabilizer Bar
489 Stabilizer Bar
ASB600 600 mm Stabilizer Bar
2 ft. (24") center to center
notch spacing
2 ft. 6 in. (30") center to center
notch spacing
4 ft. (48") center to center
notch spacing
600 mm center to center
notch spacing
ASB900 900 mm Stabilizer Bar
900 mm center to center
notch spacing
ASB1200 1200 mm Stabilizer Bar
1200 mm center to center
6 Application Guide Plank and Large Panel Stabilizer Bars
notch spacing
Stabilizer Bars
Requirements
1 Stabilizer Bar 2 Stabilizer Bars
Panels ≥ 609 If panel length is ≥ 609 then one
stabilizer is required at midpoint.
Panels ≥ 969
If panel length is ≥ 96” then two stabilizer
bars are required at the 1/3 and 2/3 points.
Sample Layouts
No Stabilzer Bar
2/3
midpoint
1/3
Traditional Panels Large Panels Planks
129 x 129 48 x 48
28 x 28
309 x 309
28 x 48
1 Stabilizer Bar
2 Stabilizer Bars
Plank and Large Panel Stabilizer Bars Application Guide 7
209 x 609 28 x 68
309 x 609
28 x 58
48 x 88 28 x 88
Installation
Standard Stabilizer Bars
Step 1
Step 2
Apply the the stabilizer bar perpendicular
to the perimeter tees.
Place the stabilizer bar aligning the notches
onto the bulb of the tee.
8 Application Guide Plank and Large Panel Stabilizer Bars
Installation
Locking Stabilizer Bars
Step 1
Step 2
Apply the the stabilizer bar perpendicular
to the perimeter tees.
Fit stabilizer bar onto the tee bulbs
through notches
Step 3
Plank and Large Panel Stabilizer Bars Application Guide 9
Fold locking tabs to secure stabilizer bar
in place.
Installation
Accessible Stabilizer Bars (ASB)
Step 1
Step 2
Towards each end of the ASB a stab tab
is punched out of the lower leg. To ensure
proper positioning the stab tab should be bent
downwards.
Position the ASB on the back of the panel.
There is a slot on either end of the bar that
should align with the panel edge. Press rmly
down on the bar until the stab tabs are fully
engaged.
Step 3
10 Application Guide Plank and Large Panel Stabilizer Bars
Engage the capture tabs on either end
of the ASB.
Installation
Accessible Stabilizer Bars
Step 4
Step 5
The capture tabs should not contact the
paint or nish of the panel edge and should
be pressed in as far as they can go to avoid
interference with the suspension system.
If panel length is ≥ 969 then two stabilizer
bars are required at the 1/3 and 2/3 points.
Note: Install adjoining stabilizer bars at
a slight offset to avoid interference with
adjacent stabilizer bars.
Step 6
Plank and Large Panel Stabilizer Bars Application Guide 11
Install the panel into the suspension system.
Installation
Accessible Stabilizer Bars
Step 7
Step 8
The panel bar hooks over the bulb of the
suspension system.
Note: The bar does not seat on the top
of the grid bulb, it captures the bulb laterally
and keeps it in the proper relative position
to the panel edge.
After the panel is installed, the bulb tab
may be turned towards the suspension
system body to avoid interference when
the adjacent panel is installed.
12 Application Guide Plank and Large Panel Stabilizer Bars
on the suspension
Installation
Accessible Stabilizer Bars
The maximum thickness of the material
sitting on the suspension system ange
is 7/89.
The minimum is 3/89
7
/8" maximum
thickness of
material sitting
on the suspension
system flange
Note: The ASB works with full size grid proles and does not work on the 19 small bulb proles.
3
/8" minimum
thickness of
material sitting
system flange
Plank and Large Panel Stabilizer Bars Application Guide 13
Installation
Accessible Stabilizer Bars
Step 1
Step 2
for USG True
A stabilizer bar is needed when installing certain USG True™ Wood panels, the Accessible Stabilizer Bar
is to be used with the outer capture tab snipped off.
Determine number of stabilizer bars required.
Snip off the outer capture tab.
™
Wood Panels
Panel Size Number of
18 x 48
18 x 58
28 x 68
28 x 88
209 x 609
309 x 609
stabilizer bars
0
0
1
3
1
1
14 Application Guide Plank and Large Panel Stabilizer Bars
Installation
Accessible Stabilizer Bars
for USG True Wood Panels
Step 3
Step 4
Center stabilizer bar so ends are
ush with panel edge.
Fasten with 1/29 x 1/29 #12 screws.
For 2 x 8 panels,
space stabilizer
bars 24" o.c.
C
L
Step 5
Plank and Large Panel Stabilizer Bars Application Guide 15
Lower panel into grid opening,
ensuring stabilizer bar engages
with bulb of grid.
Product Information
See usg.com for the most
up-to-date product information.
Installation
Must be installed in compliance
with ASTM C636, ASTM E580,
CISCA, and standard industry
practices.
Code Compliance
The information presented
is correct to the best of our
knowledge at the date of
issuance. Because codes
continue to evolve, check
with a local ofcial prior to
designing and installing a
ceiling system. Other
restrictions and exemptions
may apply. This is only
intended as a quick reference.
ICC Evaluation Service, Inc.,
Report Compliance
Suspension systems
manufactured by USG Interiors,
Inc., have been reviewed and
are approved by listing in
ICC-ES Evaluation Report 1222.
Evaluation Reports are subject
to reexamination, revision and
possible cancellation. Please
refer to usgdesignstudio.com or
usg.com for current reports.
L.A. Research Report
Compliance
Donn brand suspension systems
manufactured by USG Interiors,
Inc., have been reviewed and
are approved by listing in the
following L.A. Research Report
number: 25764.
Notice
We shall not be liable for
incidental and consequential
damages, directly or indirectly
sustained, nor for any loss
caused by application of these
goods not in accordance with
current printed instructions or
for other than the intended use.
Our liability is expressly limited to
replacement of defective goods.
Any claim shall be deemed
waived unless made in writing
to us within thirty (30) days from
date it was or reasonably should
have been discovered.
Safety First!
Follow good safety/industrial
hygiene practices during
installation. Wear appropriate
personal protective equipment.
Read MSDS and literature
before specication and
installation.
Manufactured by
USG Interiors, Inc.
550 West Adams Street
Chicago, IL 60661
usg.com
seismicceilings.com
sustainableceilings.com
usgdesignstudio.com
The following are trademarks of USG
Interiors, Inc. or a related company:
CentriCitee, Donn, DXF, DXI, DXT, DXLT,
Fineline, inDentitee, trueWooD, USG, USG
in stylized letters.
IC592/rev 7-13
© 2013, USG Interiors, Inc.
Printed in U.S.A.
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