Span for PVC Sch 80

Suggested Span for PVC Pipe Sch 80 -Temp(°F)

PIPE SIZE (in.)	60°	80°	100°	120°	140°
1/4	4	4	3.5	2.5	2
3/8	4.5	4.5	4	2.5	2.5
1/2	5	4.5	4.5	3	2.5
3/4	5.5	5	4.5	3	2.5
1	6	5.5	5	3.5	3
1-1/4	6	6	5.5	3.5	3
1-1/2	6.5	6	5.5	3.5	3.5
2	7	6.5	6	4	3.5
2-1/2	7.5	7.5	6.5	4.5	4
3	8	7.5	7	4.5	4
3-1/2	8.5	8	7.5	5	4.5
4	9	8.5	7.5	5	4.5
5	9.5	9	8	5.5	5
6	10	9.5	9	6	5
8	11	10.5	9.5	6.5	5.5
10	12	11	10	7	6
12	13	12	10.5	7.5	6.5
14	13.5	13	11	8	7
16	14	13.5	11.5	8.5	7.5
18	14.5	14	12	11	9
20	15.5	14.5	12.5	11.5	9.5
24	17	15	14	12.5	10.5