Span for PVC Sch 40

Suggested Span for Schedule 40-Temp(°F)

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