Combustible shelf
Any combustible shelf must be installed at least 50" (127 cm) above the base of the fireplace
if the depth of the shelf is 6" or less. If the depth of the shelf is more that 6" but less that 12",
the shelf must be installed at least 52" (132 cm) from the base of the fireplace (see figure 10).
12
52
6"
50"
Figure 10
SPACER
COMBUSTIBLE
FACING
1/2" GYPROC
2" X 4"
Figure 11
16