Standard Kitchen Sink Drain Pipe Size

While the standard kitchen sink size measures 22 by 30 inches length by width sink sizes generally depend on the interior width of the sink s cabinet.

Standard kitchen sink drain pipe size.

The main sewer pipe leading to the septic tank or public sewer is usually 4 inches. Item 2564297 model dk 105 lw. All the pipes that connect to the tailpiece including the p trap assembly. Some older sinks may have drains that connect to a 1 1 4 inch tailpiece but most modern drains have a 1 1 2 inch outlet.

This size is precisely the diameter of the pipe instead of the length. The diameter of the plumbing from the main sink is 1 1 2 which then connects to 2 waste pipe. Compare the fixture to the minimum sizes of drainage pipe by fixture table. When installing a new kitchen sink drain or repairing an old leaking one you need a particular size drainpipe.

Bob villa or not to suggest 1 1 2 is only found in bottom of the line housing is inexcusable for. Every state may have different code on plumbing and it may affect the required size of the bathroom sink pipe. Sewer drains from laundry sinks or washing machines are 2 inches in diameter and those from sinks in the kitchen bathroom or powder room generally use a 1 5 inch pipe. For instance the minimum pipe diameter for a washing machine drain is pipe with a 1 1 2 inch diameter.

Drains connect to either a 1 1 4 inch or 1 1 2 inch tail pipe. On an average cabinets measure 36 to 42 inches high 24 inches deep and 25 1 4 to 26 inches wide. These drains like bathroom and kitchen drains use a p trap which is a j shaped pipe that connects to the main drain line. The 1 2 inch supply pipes that come to the sink each terminate with a shutoff valve and this valve is one of the two factors that determine the connector size on the faucet hose.

This pipe is the standard size for all kitchen sinks. The inlet must match the supply pipe and it can be a 1 2 inch female pipe thread fpt connector for galvanized pipes a 1 2 inch compression or sweat connector for. It provides the right amount of flow to drain a kitchen sink during heavy use. Since all kitchens use this size of pipe it is best to stick with it during any repair.

However most of the bathroom sinks use 1 inch drain pipe. A 2 inch sink strainer fits the standard bar sink drain.