40
Framing Setback
The framing may be setback the thickness of the drywall to allow the drywall to overlap the fiberboard.
See the illustration below.
(a) Fiber board to side of fireplace
(b) Drywall
© Travis Industries
Installation
30-1/2" 775mm
1/2" 12mm
23-1/2" 597mm
or
5/8" 15mm
(for qualified installers only)
or
4140717
a
b
100-01351