Standard Kitchen Sink Drain Pipe Size

The standard size of stainless steel kitchen sink is measured at 19 gauge which is cost effective for a kitchen sink.

Standard kitchen sink drain pipe size.

Check local building codes. If a toilet connects to a drainpipe the pipe must be at least 3 inches. However the better quality comes with an 18 gauge which is 0 0500 inches. It provides the right amount of flow to drain a kitchen sink during heavy use.

Size a standard rule of thumb is that sewer pipes leading away from a toilet are 3 inches in diameter. 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. The diameter of the plumbing from the main sink is 1 1 2 which then connects to 2 waste pipe. These drains like bathroom and kitchen drains use a p trap which is a j shaped pipe that connects to the main drain line.

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. If the largest stack or drain pipe connecting multiple fixtures on the system is a 4 inch diameter pipe ensure that the main drain pipe is at least 4 inches in diameter. When installing a new kitchen sink drain or repairing an old leaking one you need a particular size drainpipe. Drains connect to either a 1 1 4 inch or 1 1 2 inch tail pipe.

Drains connect to either a 1 1 4 inch or 1 1 2 inch tail pipe. Use this chart to count the number of fixture units that will be connected to a drain line and for the minimum drainpipe size. For example an 18 number gauge stainless steel sink provides longer wear and tear over a 22 number gauge stainless steel sink. The main pipes which are the ones that come off the main water supply and the water heater are 3 4 inches in diameter.