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Concrete Pipe Sizes

The table was laid out so it would be consistent with the tables for steel and iron pipe.  These bookmarks are provided to make it easier to find the data.

12, 15, 18, 21, 24, 27, 30, 33, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108

NOMINAL
SIZE
WALL OUTER
DIAMETER
12" 1.75" 15.5"
2 16
15 1.88 18.76
2.25 19.5
18 2 22
2.5 23
21 2.25 25.5
2.75 26.5
24 2.5 29
3 30
3.75 31.5
27 2.625 32.26
3.25 33.5
4 35
30 2.75 35.5
3.5 37
4.25 38.5
33 2.875 38.76
3.75 40.5
4.5 42
36 3 42
4 44
4.75 45.5
42 3.5 49
4.5 51
5.25 52.5
48 4 56
5 58
5.75 59.5
54 4.5 63
5.5 65
6.25 66.5
60 5 70
6 72
6.75 73.5
66 5.5 77
6.5 79
7.25 80.5
72 6 84
7 86
7.75 87.5
78 6.5 91
7.5 93
8.25 94.5
84 7 98
8 100
8.75 101.5
90 7.5 105
8.5 107
9.25 108.5
96 8 112
9 114
9.75 115.5
102 8.5 119
9.5 121
10.25 122.5
108 9 126
10 128
10.75 129.5
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Last modified: February 21, 2011