Some common plumbing pipe sizes are 1/2 to 2 inches diameter for supplying water to homes, 1/2 inch and 1 inch diameters for irrigating residential landscapes, and 1 1/2 inches and 6 inches diameter for drain pipes. Plumbing pipe size varies depending on the pipe material and application.Continue Reading
Copper pipes that are supply water to residences are available in diameters up to 6 inches. For this use, diameters of 1/2 to 2 inches are common. PVC pipes that irrigate home landscapes are available in 1/2 to 6 inch diameter sizes, with the 1/2 and 1 inch diameter pipes being most common.
Cast iron pipes are common for residential drain systems. Acrylonitrile butadiene styrene pipes used for the same purpose have thick walls, with a wall thickness of schedule 40. Normally, drain pipes have a larger diameter than pipes supplying water.Learn more about Plumbing