The thickness of Schedule 80 pipe depends on its nominal pipe size (NPS). Schedule 80 pipes are designed with thicker walls than Schedule 40 pipes, providing higher strength and pressure resistance. Here's a general guide to the wall thicknesses of Schedule 80 pipes for various nominal pipe sizes:
1/8 inch: 0.140 inches (3.56 mm)
1/4 inch: 0.154 inches (3.91 mm)
3/8 inch: 0.180 inches (4.57 mm)
1/2 inch: 0.200 inches (5.08 mm)
3/4 inch: 0.218 inches (5.54 mm)
1 inch: 0.237 inches (6.02 mm)
1 1/4 inch: 0.250 inches (6.35 mm)
1 1/2 inch: 0.280 inches (7.11 mm)
2 inch: 0.300 inches (7.62 mm)
2 1/2 inch: 0.337 inches (8.57 mm)
3 inch: 0.384 inches (9.75 mm)
4 inch: 0.432 inches (10.97 mm)
5 inch: 0.500 inches (12.70 mm)
6 inch: 0.546 inches (13.86 mm)
8 inch: 0.622 inches (15.80 mm)
10 inch: 0.729 inches (18.53 mm)
12 inch: 0.800 inches (20.32 mm)
14 inch: 0.875 inches (22.23 mm)
16 inch: 0.937 inches (23.81 mm)
18 inch: 1.000 inches (25.40 mm)
20 inch: 1.062 inches (26.92 mm)
24 inch: 1.125 inches (28.58 mm)
These measurements apply to Schedule 80 pipes made of materials like PVC, CPVC, and steel, but always verify with the manufacturer for the exact dimensions specific to the material you're working with.
