GRC Conduit

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Calculator / Last modified by KurtHeckman on 2018/07/06 19:28
GRC Conduit Installation Time
GRC Conduit Installation Length
GRC Conduit Weight
Rolling Offsets (run)
Rolling Offsets (travel)

The GRC Conduit calculator estimates the time to install, the length installed and the weight of Galvanized Rigid Conduit (GRC) 

Cable and Conduit Installation Calculators

The Math / Science

GRC stands for Galvanized Rigid Conduit.  GRC is the race way material with the thickest walls.  The relationship between the weight of the GRC and the size can be seen the following table.
plumbing1.png

      Weight per 100 ft Length
SizePoundsKilograms
1/2"   8237.2
3/4"   10949.4
1"     16173.0
1-1/4" 21898.9
1-1/2" 263119.3
2"     53350
2-1/2" 559253.5
3"     727329.7
3-1/2" 880399.1
4"     1030467.1
5"     1400634.9
6"     1840834.5

The relationship between install time of GRC. the length, size and level of difficulty can be seen in the following table.

      Hours per Foot Installed
Size Lvl1Lvl2Lvl3Lvl4
1/2"   0.0400.0500.0600.075
3/4"   0.0500.0620.0750.094
1"     0.0600.0750.0900.113
1-1/4" 0.0750.0940.1130.141
1-1/2" 0.0810.1010.1220.152
2"     0.1030.1290.1550.194
2-1/2" 0.1200.1500.1800.225
3"     0.1500.1880.2250.281
3-1/2" 0.1800.2250.2700.338
4"     0.2100.2630.3150.394