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Manholes
Manhole Sizing
Manhole Size Estimator
Connections
Size
Type
Invert
Angle
Pipe #1
6"
8"
10"
12"
15"
18"
21"
24"
27"
30"
36"
42"
48"
54"
60"
RCP
PVC
CMP
SW-HDPE
DW-HDPE
Pipe #2
6"
8"
10"
12"
15"
18"
21"
24"
27"
30"
36"
42"
48"
54"
60"
RCP
PVC
CMP
SW-HDPE
DW-HDPE
Plan View
Section View
Manhole Sizing Calculations Are Only Approximate Based On Limited Requirements. Please Contact Our Office For Further Sizing Considerations.