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PVC Pipe Sizes Chart

PVC Pipe sizes are different than the size the pipe is called. For example, a 1 inch PVC Pipe is actually 1.315 inches in outside diameter, and 1.029 inches in inside diameter. Fittings follow this same pattern, a 1" fitting has a 1.315 inch opening to accept a 1 inch pipe, which actually measures 1.315 inches in diameter. The opening in the fitting and the size of the pipe are exactly the same size; this is called an "interference fit" and the two parts are intended to be "welded" together using PVC glue, which is really a solvent that melts the two parts together.

PVC PIPE SIZES

 

Schedule 40 Dimensions

Nom. Pipe Size (in)
O.D.
Average I.D.
Min. Wall
Nom. Wt./Ft.
Max. W.P. PSI**

1/8"

0.405

0.249

0.068

0.051

810

1/4"

0.540

0.344

0.088

0.086

780

3/8"

0.675

0.473

0.091

0.115

620

1/2"

0.840

0.602

0.109

0.170

600

3/4"

1.050

0.804

0.113

0.226

480

1"

1.315

1.029

0.133

0.333

450

1-1/4"

1.660

1.360

0.140

0.450

370

1-1/2"

1.900

1.590

0.145

0.537

330

2"

2.375

2.047

0.154

0.720

280

2-1/2"

2.875

2.445

0.203

1.136

300

3"

3.500

3.042

0.216

1.488

260

3-1/2"

4.000

3.521

0.226

1.789

240

4"

4.500

3.998

0.237

2.118

220

5"

5.563

5.016

0.258

2.874

190

6"

6.625

6.031

0.280

3.733

180

8"

8.625

7.942

0.322

5.619

160

10"

10.750

9.976

0.365

7.966

140

12"

12.750

11.889

0.406

10.534

130

Schedule 80 Dimensions

Nom. Pipe Size (in)
O.D.
Average I.D.
Min. Wall
Nom. Wt./Ft.
Max. W.P. PSI**

1/8"

.405

.195

0.095

0.063

1230

1/4"

.540

.282

0.119

0.105

1130

3/8"

.675

.403

0.126

0.146

920

1/2"

.840

.526

0.147

0.213

850

3/4"

1.050

.722

0.154

0.289

690

1"

1.315

.936

0.179

0.424

630

1-1/4"

1.660

1.255

0.191

0.586

520

1-1/2"

1.900

1.476

0.200

0.711

470

2"

2.375

1.913

0.218

0.984

400

2-1/2"

2.875

2.290

0.276

1.500

420

3"

3.500

2.864

0.300

2.010

370

3-1/2"

4.000

3.326

0.318

2.452

350

4"

4.500

3.786

0.337

2.938

320

5"

5.563

4.768

0.375

4.078

290

6"

6.625

5.709

0.432

5.610

280

8"

8.625

7.565

0.500

8.522

250

10"

10.750

9.493

0.593

12.635

230

12"

12.750

11.294

0.687

17.384

230

**Max. Water Pressure at 68 degrees F, Higher temperatures lower the pressure rating.

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