What Is The Standard Size Of A Bathroom Sink Drain

Are all bathroom sink drains the same size.

What is the standard size of a bathroom sink drain.

Every state may have different code on plumbing and it may affect the required size of the bathroom sink pipe. Inside the pipe there should be 1 inches hole. However most of the bathroom sinks use 1 inch drain pipe. 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.

Standard sink drain sizes include 3 1 2 inches kitchen sink 1 1 4 inches bathroom sink and 2 inches bar sink. While the standard kitchen sink size measures 22 by 30 inches length by width sink sizes generally depend on the interior width of the sink s cabinet. The size of the bathroom sink drain goes from 1 1 4 inches 32mm to 1 1 2 inches 40mm. This size is precisely the diameter of the pipe instead of the length.

On an average cabinets measure 36 to 42 inches high 24 inches deep and 25 1 4 to 26 inches wide. Rough in dimension terminology. Use proper size to keep sink free flowing. Don t get confused with the hole size and the actual pipe size.

All the pipes that connect to the tailpiece including the p trap assembly. Traditionally most drains have 1 inch outlet that connects to a tailpiece forming a p trap pipe configuration. 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. 1 1 4 inches is the general standard and 1 1 2 inches and 1 3 5 inches are commonly used.

Some older sinks may have drains that connect to a 1 1 4 inch tailpiece but most modern drains have a 1 1 2 inch outlet. Standard size for the drain hole in a bathroom sink. The standard size and setting. Weight depends on the material and its overall size.

The hole must also coordinate with the typical size of a bathroom sink drain which is 1 1 4 inches in diameter according to the lincoln county oregon website. The drainage hole in a bathroom sink must be at least 1 1 4 inches in diameter according to the international code council. Bathroom sink materials pros and cons. Installing your sink also means understanding standard sizes for your sink s drain pipes.