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Cubic Inch Capacity of Carlon Boxes
Box Size Cubic Inches Per Box
2
1
/2" Deep Mud Box (
1
/2" KO’s) 26
2
1
/2" Deep Mud Box (
3
/4" KO’s) 26
4" Deep Mud Box (
1
/2" KO’s) 44
4" Deep Mud Box (
3
/4" KO’s) 44
4" Deep Mud Box (1" KO’s) 44
6" Deep Mud Box 63
1 Gang Switch Box 1
1
/2" D 16
2 Gang Switch Box 1
1
/2" D 20
2 Gang Switch Box 2
3
/8" D 30.3
1 Gang Plaster Ring
1
/2" Rise 3.5
1 Gang Plaster Ring
5
/8" Rise 4.2
1 Gang Plaster Ring
3
/4" Rise 5.0
1 Gang Plaster Ring 1" Rise 6.6
1 Gang Plaster Ring 1
1
/4" Rise 8.1
2 Gang Plaster Ring
1
/2" Rise 6.1
2 Gang Plaster Ring
5
/8" Rise 7.4
2 Gang Plaster Ring
3
/4" Rise 8.8
2
1
/8" Ceiling Box 1
1
/2" D  4" D (All Types) 20.5
4" Round Plaster Ring
1
/2" 3.2
4" Round Plaster Ring
5
/8" 4.0
Table 7-1
NOTE: To obtain additional cubic inches for your particular
situation, you can install a plaster ring, add the cubic inches
of a Carlon box and plaster ring for total cubic inches, i.e.:
Two Gang Box 20.0 cu.in.
5
/8" Plaster Ring 7.4 cu.in.
TOTAL 27.4 cu.in.
Carlon Ceiling Box
and ENT roughed
above a ceiling.
Carlon Switch Boxes
roughed-in for
switches and
receptacles.