Planning, Building code considerations – USG Casting Fireplace Surrounds User Manual
Page 8
Minimum Mantel
There are minimum clearances for combustible mantel width beside a fireplace. NFPA codes for minimum
Horizontal Clearances
clearances are as follows:
Mantel Leg from Side Opening
Mantel Leg Depth
Ref.
Mantel Leg Depth
Reference
Mantel Leg from
Side of Opening
j
10
Љ
J
11.5
Љ
i
8
Љ
I
9.5
Љ
h
6
Љ
H
7.5
Љ
g
4
Љ
G
5.5
Љ
f
2
Љ
F
3.5
Љ
Planning
Building Code Considerations
8
Casting Fireplace Surrounds
side of combustion chamber
F
G
H
I
J
surround face
mantel leg
f
g
h
i
j
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