The kitchen drainpipe connects to the drain under the sink.

Kitchen sink drain diameter. Most experts suggest you buy a sink that’s at least 7 inches deep, but some sinks have a depth of up to 10. The following are the parts of a kitchen sink drain: Check your local codes before installing or altering.

Shallower than that and your kitchen sink will run out of space for dishes fast. They’re generally 3 ½ inches in diameter and are larger than bathroom drains, which are 1 ¼ inch in diameter. You cannot have a sink without a faucet.

The trap can't have a. The most common length for a sink is between 30 and 33 inches. A kitchen sink and dishwasher drain pipe should be at least 1 ½ inches in diameter.

The diameter of the drain hole of the kitchen sink is considered to be 1.5 inches. However, the minimum size can vary from state to state. It is said that a standard double kitchen sink would be 22 inches wide, 36 inches long, and 9 inches deep.

The standard kitchen sink plumbing has the kitchen sink drain about 28 inches from the floor. First, measure out that distance on both sides of the wall. The drain has a threaded pipe sticking out below the lock nut that secures the drain to the sink basin itself.

The standard size pipe for a kitchen sink drain is 3 ½”. This is determined by the depth of the sink bowl and the height of the counter. The trap and tailpiece should have the same diameter, which is generally 1 1/2 inches, since the code specifies that diameter for the sink drain outlet.