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Framing should be
constructed of 2 X 4
lumber or heavier.
A. ............. 42”*
B. .........38 1/2”
C. ............... 22”
D. ............... 42”
E. .........27 7/8”
Figure 3. Framing Dimensions
Step 2. Framing the Fireplace
Fireplace framing can be built before or after the fireplace is
set in place. Framing should be positioned to accommo-
date wall coverings and fireplace facing material. The dia-
gram below shows framing reference dimensions.
CAUTION: MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL COVERING
DETAILS BEFORE FRAMING.
1/2” CLEARANCE FROM BACK OF FIREPLACE TO COMBUSTIBLE
0” CLEARANCE TO
FRAMING MEMBER
0” CLEARANCE
1/2” CLEARANCE
FROM BOTH SIDES
OF FIREPLACE
TO COMBUSTIBLE
FRAMING
MEMBER
Shows center of
12” x 12” vent framing
holes for top and rear vent-
ing. The center of the hole is one
(1) inch (25.4mm) above the center
of the horizontal vent pipe.
D
E
A
B
C
WALL
STUD
3 1/2”
3
”
Noncombustible zone is defined
by 3” above the elbow for the
entire width and depth (behind
the front header) of the firebox.
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