PVC Pipe Support Spacing

PVC PIPE SUPPORT SPACING (ft.)

PIPE SIZE (in.)

SCHEDULE 40
TEMPERATURE (°F)

SCHEDULE 80
TEMPERATURE (°F)

SCHEDULE 120
TEMPERATURE (°F)

60 80 100 120 140 60 80 100 120 140 60 80 100 120 140
1/4 4 3 1/2 3 1/2 2 2 4 4 3 1/2 2 1/2 2  
3/8 4 4 3 1/2 2 1/2 2 4 1/2 4 1/2 4 2 1/2 2 1/2
1/2 4 1/2 4 1/2 4 2 1/2 2 1/2 5 4 1/2 4 1/2 3 2 1/2 5 5 4 1/2 3 2 1/2
3/4 5 41/2 4 2 1/2 2 1/2 5 1/2 5 4 1/2 3 2 1/2 5 1/2 5 4 1/2 3 3
1 5 1/2 5 4 1/2 3 2 1/2 6 5 1/2 5 3 1/2 3 6 5 1/2 5 3 1/2 3
1 1/4 5 1/2 5 1/2 5 3 3 6 6 5 1/2 3 1/2 3 6 1/2 6 5 1/2 3 1/2 3 1/2
1 1/2 6 5 1/2 5 3 1/2 3 6 1/2 6 5 1/2 3 1/2 3 1/2 6 1/2 6 1/2 6 4 3 1/2
2 6 5 1/2 5 3 1/2 3 7 6 1/2 6 4 3 1/2 7 1/2 7 6 1/2 4 3 1/2
2 1/2 7 6 1/2 6 4 3 1/2 7 1/2 7 1/2 6 1/2 4 1/2 4 8 7 1/2 7 741/2 4
3 7 7 6 4 3 1/2 8 7 1/2 7 4 1/2 4 8 1/2 8 7 1/2 5 4 1/2
3 1/2 7 1/2 7 6 1/2 4 4 8 1/2 8 7 1/2 5 4 1/2 9 8 1/2 7 1/2 5 4 1/2
4 7 1/2 7 6 1/2 4 1/2 4 9 8 1/2 7 1/2 5 4 1/2 9 1/2 9 8 1/2 5 1/2 5
5 8 7 1/2 7 4 1/2 4 9 1/2 9 8 5 1/2 5 10 1/2 10 9 6 5 1/2
6 8 1/2 8 7 1/2 5 4 1/2 10 9 1/2 9 6 5 11 1/2 10 1/2 9 1/2 6 1/2 6
8 9 8 1/2 8 5 4 1/2 11 10 1/2 9 1/2 6 1/2 5 1/2  
10 10 9 8 1/2 5 1/2 5 12 11 10 7 6
12 11 1/2 10 1/2 9 1/2 6 1/2 5 1/2 13 12 10 1/2 7 1/2 6 1/2
14 12 11 10 7 6 13 1/2 13 11 8 7
16 12 1/2 11 1/2 10 1/2 7 1/2 6 1/2 14 13 1/2 11 1/2 8 1/2 7 1/2
18 13 12 11 8 7 14 1/2 14 12 11 9
20 14 12 1/2 11 1/2 10 8 1/2 15 1/2 14 1/2 12 1/2 11 1/2 9 1/2
24 15 13 12 1/2 11 9 1/2 17 15 14 12 1/2 10 1/2

 

SDR 41

SDR 26

18 13 12 11 8 7 14 1/2 14 12 9 8
20 13 1/2 12 1/2 11 1/2 8 1/2 7 1/2 15 14 1/2 12 1/2 9 1/2 8 1/2
24 14 13 12 9 8 15 1/2 15 13 10 9
Note: Although support spacing is shown at 140°F, consideration should be given to the use of CPVC or continuous support above 120°F. The possibility of temperature overrides beyond regular working temperatures and cost may either make either of the alternatives more desirable. This chart based on continuous spans and for un-insulated line carrying fluids of specific gravity up to 1.00.