Crane Composites Sanigrid Fiberglass Ceiling Grid Class A - Manual (Page 3)

A. Grid confi gured with main tees 4' O.C. and 4' cross tees interlocking main tees.
B. Grid confi gured with main tees 4' O.C. and 4' cross tees interlocking main tees and 2' cross tees (SG222) intersecting 4' tees.
C. Grid confi gured with main tees 2' O.C. and 2' cross tees (SG223) interlocking main tees.
IMPORTANT INSTALLATION NOTES
The main runner notches and cross tee lengths have been sized to
provide a:
23¾" x 47¾" (603 mm x 1213 mm) or
23¾" x 23¾" (603 mm x 603 mm)
opening at the top of the grid.
As a result the main runners are 48" (1234 mm) on the center and
the cross tees are 24¼" (616 mm) on center. This will provide
clearance for laminated, rigid, or gypsum ceiling panels, light fi xtures
or air diffusers. This may affect ceiling lay-out.
To accommodate the over-size dimensions of the Sanigrid II ceiling
system, 23¾" x 48" (603 mm x 1219 mm) Glasbord
®
ceiling panels
are available and recommended. These panels WILL NOT FIT
standard metal grid systems so they should be ordered only for
Sanigrid II installations.
The standard 23¾" x 23¾" (603 mm x 603 mm) panels will fi t the
2' x 2' (0.6 m x 0.6 m) Sanigrid II system.
Before beginning installation, ensure that you have the correct cross
tee to match your ceiling layout. Two different 2' (0.6 m) cross tees
are available.
The SG222 is designed to mate with the 4' (1.2 m) cross tee.
The SG223 is designed to mate with the 12' (3.7 m) main runner.
To accommodate light fi xtures and other ceiling inserts, the Sanigrid main
runners are spaced 48.60" on center and the 4' cross tees are spaced
24.25" on center. This spacing will provide a 23-3/4" x 47-3/4" or
23-3/4" x 23-3/4" opening at the top of the grid. This may affect ceiling
layout. Check component sizes (above and below) and center lines
before laying out ceiling plan. This may also affect light fi xture positions
and other trades above the ceiling line.
Light fi xtures must be supported independent of the ceiling grid system.
Opening at face of grid for light fi xture lens door is 47" x 22-3/4" or
22-3/4" x 22-3/4".
CAUTION
When cutting, drilling, or grinding fi berglass materials, protect eyes with
goggles.
Wear a fi lter mask to avoid breathing dust, and wear gloves to prevent
splinters.
A hacksaw is recommended for hand cutting ceiling system.
Figure C Figure B Figure A
Sanigrid
®
II Grid and Glasbord
®
Ceiling Panel Sizes
Grid Size
Glasbord Laminated Panel Thickness and Size Needed
5/8" | 15.9 mm
or less
3/4" | 19.1 mm
1" | 25.4 mm
and over
A
2′ x 4′ | 0.6 m x 1.2 m
23-3/4″ x 48″
0.6 m x 1.2 m
Not
Recommended for Sanigrid
23-3/4″ x 47-1/2″
0.6 m x 1.2 m
B
2′ x 2′ | 0.6 m x 0.6 m
23-3/4″ x 23-3/4″
0.6 m x 0.6 m
23-5/8″ x 47-1/2″
0.6 m x 1.2 m
C
2′ x 2′ | 0.6 m x 0.6 m
23-3/4″ x 24″
0.6 m x 0.6 m
23-5/8″ x 47-1/2″
0.6 m x 1.2 m