How to choose location for kitchen rough-in plumbing

Where do you rough in plumbing for a kitchen sink?

Most kitchen sink drains have a rough-in height of 18 – 20 inches from the floor. This is usually enough for the P-trap to allow proper drainage. It also allows enough space for both the hot water and cold water lines to fit into place nicely.

How do you rough in plumbing in a kitchen?

Quote from the video:
Quote from Youtube video: We have an angle up shutoff male thread. Okay half-inch male thread. This is our pecs fitting right here now. We're gonna be using at the end of this line.

Does sink need to be centered with plumbing?

Dishes can easily block a centered drain, causing water and food debris to build up. Centered drains are also not ideal in small kitchens. The central placement of the plumbing below the sink wastes valuable storage space.

Where should the sink drain be located?

Did you ever notice the drain location of the kitchen sinks on the market? The majority of them are either right in the middle of the sink, or the rear center.

How far from the wall should a kitchen sink drain be?

The standard kitchen sink is 8 inches deep, which means that the normal distance between a kitchen sink drain and the floor is 28 inches. This will vary, depending on the height of the counter and the depth of the sink bowl.

Does a sink have to be centered in the cabinet?

Your sink should not necessarily be centered under the window. It can function perfectly well regardless of where it is, as long as there is a good source of water. In modern interior design, though, placing it in a kitchen island or below the cabinet is normal.

How far under a sink can the P-trap be installed?

Maximum Distance



According to the International Residential Code, the maximum vertical distance between the sink drain and the entrance to the p-trap is 24 inches.

How do you rough in sink drains?

Quote from the video:
Quote from Youtube video: So I don't have a drain line here so if you look there's no place for the water to go. So I gotta fix that real quick because I'm ready to put the toilet and the sink in.

What are the rough in measurements for a kitchen sink?

The proper kitchen sink drain rough in height is 20 to 24 inches.

How far should drain pipe stick out of wall?

Wall Drains



Like the supply stub-outs, the drain stub-out extends from a fitting — usually a sanitary tee — to a point 3 or 4 inches beyond the wall. The drain, which is usually 2-inch plastic pipe, maintains a minimum slope of 1/4 inch per foot from the stub-out to the point where it ties into a main waste pipe.

How far can you run a drain without a vent?

If you have 1- 1/4-inch pipe, the horizontal distance of the vent ought to not be more than 30 inches. For a 1- 1/2-inc pipe the vent must be 42 inches away at the most while a 2-inch pipeline must have an optimum distance of 5 feet.

How far can a sink be from a vent stack?

There is a vent between the sink P-trap and the point where the waste line goes to the main sewer. The vent can’t be more than 2 1/2 feet from the trap if the waste line has a diameter of 1 1/2 inches. The critical distance is 3 1/2 feet if the waste line is 1 1/2 inches.

How far can vent be from P-trap?

Note: The developed length between the trap of the water closet or similar fixture and its vent shall not exceed four feet.



Distance of fixture trap from vent.

Does a plumbing vent pipe have to be vertical?

Plumbing vents need to be straight on the vertical. This is necessary to avoid any vapor locks from occurring. When there is a bend in the vent pipe, moisture accumulates and is trapped.

How far can a vent be away from a fixture?

If you have 1 ¼-inch pipe, the horizontal distance of the vent should not be more than 30 inches. For a 1 ½-inc pipe the vent should be 42 inches away at the most while a 2-inch pipe must have a maximum distance of 5 feet.