Supply and Drain Height

[hookerp]

What height should the supply and drain lines for the kitchen sink and bathroom sink be?


Thanks

[LazyPup]

There are no actual code requirements except the length of a tailpiece from the sink to the trap may not exceed 24" vertical drop.

I normally set the kitchen drain at 20" above the floor and the supplies at 22" above the floor.

Lavatory drain at 22" and supplies at 24" above the finished floor (not the cabinet bottom)