When speaking of plumbing dimensions the term centerline is often used as with the term on center which is used for construction the term centerline is an imaginary vertical line drawn through a key reference point usually the drain pipe.
Plumbing rough in finished floor.
In the home building and remodeling trades the term rough in refers to the stage of construction after the basic framing is completed and the initial wiring and plumbing installations are completed but before walls and ceilings are closed up with wallboard.
Here with this video you will learn some of the basic rules of thumb for doing rough in plumbing underground.
Determine where the toilet is going to be positioned and mark its center on the wall.
This is the point at which much of this work is first reviewed by the building inspector.
It can also run under sidewalks stoops patios and decks.
Especially since rough in plumbing is just a stepping stone to the larger plumbing installation.
Step 1 find and mark your key locations.
The bathroom sink rough in dimensions are as follows.
Rough in dimension terminology.
The center of the lav s drain is located 18 approximately above the finished floor.