About 16 to 20 inches above the floor.
Kitchen sink drain pipe rough in height.
This measurement is based on an average bathroom counter height of 32 inches and a drop in sink with an average depth of 8 inches.
One hole is 4 inches to the right of centerline.
One of the main issues most people suffer nowadays is finding out the right kitchen sink drain height.
Other is 4 inches to left of centerline discharge hole vertical.
Rough in plumbing is usually placed at a somewhat lower height.
This pipe will be connected to the nearest waste line thanks to a sanitary tee.
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And this happens because all sinks are different so they all demand different measurements.
Consider drain pipe to be the vertical centerline.
There s really no standard height for the drain of a sink.
You can use a 12 pipe and glue a cap on top of it.
Homeowners installing new sinks usually find that they don t know the ideal drain height.
Vertically both are about 2 to 3 inches above the drain pipe supply lines horizontal.
Keep in mind that the drain must maintain a minimum down slope of 1 4 inch per foot toward the sewer.
You should also add a stub out on top of the sanitary tee.
Remember that all drain pipes need to have a slight drop.
You should use a two inch pipe for the drain pipe.