Kitchen Sink Drain Pipe Size. However the most common sink drain rough in height is 20. The kitchen drainpipe connects to the drain under the sink.
Inside the pipe there should be 1 inches hole. Commonly builder owners with more cramped and crowded sink vanities choose a sink drain rough in of 14 16. The kitchen drainpipe connects to the drain under the sink.
All the pipes that connect to the tailpiece including the p trap assembly.
Pipe size 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. However the most common sink drain rough in height is 20. Pipe size 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. Since the pipe is 1 1 2 inch in diameter kitchen drainpipes are also 1 1 2 inches in diameter.