Different Size Tub Drains

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.

Different size tub drains.

Brass abs acrylonitrile butadiene styrene plastic or pvc polyvinyl chloride plastic. Tub shoe drain sizes adapters. Local building codes vary in. The type of trap used on a tub drain is a p trap.

Tub drain assemblies are commonly made from one of three different pipe materials. We sell a variety of shoe adapters some are only available from us. There are two common thread types 16 and 11 1 2 threads per inch and one uncommon one 14 tpi. How what to measure.

Rough in plumbing should be calculated for a 1 1 2 inch pipe. The actual drain pipe that s in the slab the plumber will connect to is probably 1 and one half inch diameter. Tub drain assemblies can be joined with slip fittings brass abs or pvc or with solvent glued fittings abs or pvc only. A freestanding tub makes measuring easy since everything is exposed.

That s a common pipe size for tubs. Large stand up shower stalls tend to have 2 inch pipes draining them. Built in tubs can present a bit of a challenge however.