DIMENSIONS
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~ Singular Manhole Part Dimensions ~
MANHOLE DIMENSIONS
CAST IRON RINGS WITH 1/2" & 3/4" LIP
SIZE
DIM "A"
DIM "B"
DIM "C"
DIM "D"
REINF.
8"
9"
8"
7 5/8"
8"
NO
12"
13 1/4"
12 1/4"
10 3/4"
8" & 12"
NO
16"
17 3/4"
16 9/16"
15"
8" & 12"
NO
18"
19 1/8"
17 7/8"
16 1/4"
8" & 12"
NO
24"
25 5/8"
24 1/16"
21 1/2"
12"
NO
30"
31 1/2"
30"
27 3/8"
12"
YES
36"
37 1/8"
36 1/8"
34"
12"
YES
48"
50 1/8"
48 3/16"
46"
12"
YES
CAST IRON RINGS WITH 1 1/2" LIP
SIZE
DIM "A"
DIM "B"
DIM "C"
DIM "D"
REINF.
42"
46 1/8"
42 11/16"
39 9/16"
12"
YES
STEEL RINGS
SIZE
DIM "A"
DIM "C"
DIM "D"
REINF.
24"
24 5/16"
22 1/8"
12"
YES
30"
31 5/8"
28 5/16"
12"
YES
37"
37 5/8"
34 5/16"
12"
YES
42"
43"
39 3/4"
12"
YES
49"
49 1/2"
46 1/4"
12"
YES
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Index
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Cross-Section
Breakdown
Part #'s
