Bathroom Sink Drain Pipe Size

Consider drain pipe to be the vertical centerline.

Bathroom sink drain pipe size.

This size is precisely the diameter of the pipe instead of the length. What can sometimes make bathroom sinks tricky is the fact that some don t come with a drain. Compare the fixture to the minimum sizes of drainage pipe by fixture table. But as far as the pipe or standard size pvc for sink drain is concerned it s 2 or 3 inches in diameter it s the measurement that surrounds the center of the drain from both sides.

Every state may have different code on plumbing and it may affect the required size of the bathroom sink pipe. This makes our bathroom sink drain 1 5 the vent 1 5 the trap arm 1 5 and the p trap 1 5. Save 5 00 14. Since it is only used to wash hands shave and brush teeth there is no need for a larger drain hole.

About 16 to 20 inches above the floor. Vertically both are about 2 to 3 inches above the drain pipe supply lines horizontal. The main sewer pipe leading to the septic tank or public sewer is usually 4 inches. Save 5 00 14 29 90.

One hole is 4 inches to the right of centerline. Inside the pipe there should be 1 inches hole. A bathroom sink has a much smaller drain size. Sink rough in details.

Don t get confused with the hole size and the actual pipe size. A standard rule of thumb is that sewer pipes leading away from a toilet are 3 inches in diameter. The most common size of the drainage hole in a bathroom sink is 1 1 4 inches in diameter although you may also find some with a diameter of 1 1 2 inches or more. For instance the minimum pipe diameter for a washing machine drain is pipe with a 1 1 2 inch diameter.

Although most bathroom sink drain holes are similar in size to coordinate with the drains and plumbing used with the sinks themselves there is no single standard size for them. You will need a 1 5 trap adapter and a 1 5 plastic tubing p trap sometimes called trim trap. Here s how to connect the plumbing under your bathroom sink. Sewer drains from laundry sinks or washing machines are 2 inches in diameter and those from sinks in the kitchen bathroom or powder room generally use a 1 5 inch pipe.

Other is 4 inches to left of centerline discharge hole vertical. Bathroom sink materials pros and cons. The standard size and setting. Exclusive everbilt 1 1 2 in.