Commercial Pipe Schedules

How to use this chart: Pipe outside diameter (OD) is listed on the vertical axis in inches. Schedule is listed on the horizontal axis. Find the intersection of the appropriate OD and schedule to locate the wall thickness in inches.

	SCH 5	SCH 10	TRUE 10	SCH 20	SCH 30	SCH 40	TRUE 40	SCH 60	SCH 80	TRUE 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXH
1/8	.035	.049	.049			.068	.068		.095	.095
1/4	.049	.065	.065			.088	.088		.119	.119
3/8	.049	.065	.065			.091	.091		.126	.126
1/2	.065	.083	.083			.109	.109		.147	.147				.187	.294
3/4	.065	.083	.083			.113	.113		.154	.154				.218	.308
1	.065	.109	.109			.133	.133		.179	.179				.250	.358
1-1/4	.065	.109	.109			.140	.140		.191	.191				.250	.400
1-1/2	.065	.109	.109			.145	.145		.200	.200				.281	.400
2	.065	.109	.109			.154	.154		.218	.218				.343	.436
2-1/2	.083	.120	.120			.203	.203		.279	.279				.375	.552
3	.083	.120	.120			.216	.216		.300	.300				.438	.600
3-1/2	.083	.120	.120			.226	.226		.318	.318					.636
4	.083	.120	.120	.158		.237	.237	.281	.337	.337		.438		.531	.674
5	.109	.134	.134			.258	.258		.375	.375		.500		.625	.750
6	.109	.134	.134	.197		.280	.280		.432	.432		.562		.718	.864
8	.109	.148	.148	.250	.277	.322	.322	.406	.500	.500	.593	.718	.812	.906	.875
10	.134	.165	.165	.250	.307	.365	.365	.500	.500	.593	.718	.843	1.000	1.125	1.000
12	.156	.180	.180	.250	.330	.375	.406	.562	.500	.687	.843	1.000	1.125	1.312
14	.156	.188	.250	.312	.375	.375	.438	.593	.500	.750	.937	1.093	1.250	1.406
16	.165	.188	.250	.312	.375	.375	.500	.656	.500	.843	1.031	1.218	1.438	1.593
18	.165	.188	.250	.312	.438	.375	.562	.750	.500	.937	1.156	1.375	1.562	1.781
20	.188	.218	.250	.375	.500	.375	.593	.812	.500	1.031	1.281	1.500	1.750	1.968
24	.218	.250	.250	.375	.562	.375	.687	.968	.500	1.218	1.531	1.812	2.062	2.343
30	.250	.312		.500	.625	.375			.500

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