Are There Different Size Tub Drains

The type of trap used on a tub drain is a p trap.

Are there different size tub drains.

Tub depths can range from 14 for an alcove tub to well over 20 for some freestanding tubs. Because they are the same size the. There are two common thread types 16 and 11 1 2 threads per inch and one uncommon one 14 tpi. The proper size for both a bathtub drain and trap is 1 1 2 inches in diameter regardless of the bathtub size.

Rough in plumbing should be calculated for a 1 1 2 inch pipe. Purchased a replacement because the chrome was peeling and the size was correct but the pitch was not the same. A standard modern bathtub drain is 1 1 2 inches in diameter the width straight across the middle. One of the most confusing and annoying plumbing problems is replacing the bathtub drain called a plug that screws into the base called a shoe.

There are different thread pitches i have run into this on acrylic tubs that come with a drain kit.