Standard Toilet Plumbing Size

The standard size for a toilet drain pipe is 3 inches in diameter but drains up to 4 inches in diameter are often used.

Standard toilet plumbing size.

What size are toilet waste drains. In addition fixture manufacturers typically provide rough in specifications in their product literature. More on venting a toilet here. There are generally accepted plumbing rough in measurements for sinks toilets and tub showers.

This information can be found on the toilet s specification sheet. N ot for cpvc pex pb or copper pipe. I d say 80 of toilets have a 12 rough in so don t be surprised if you do as well. The minimum toilet vent size depends on your plumbing code.

In the ipc toilet vents are 1 5 in the upc it s 2 inches. It s important to know that this measurement is for standard toilets with a 12 rough in. What is the standard plumbing hole for a toilet. Always check the standard dimensions against the manufacturer s specs to make sure they will work for your installation.

The wider the pipe the more waste it can move and the. Standard toilet rough in common rough in sizes the standard toilet rough in is 12. Now you can find the perfect toilet. Standard pipe size info chart.

There are however other rough in sizes. The drain pipe connects to the flange which mounts the toilet itself and this flange is usually built to connect to 3 inch schedule 40 toilet drain pipe. To connect the appropriate size vent into the hub of the 3 sanitary tee you ll need a flush bushing. Standard toilet dimensions are typically between 28 30 deep roughly 20 wide between 27 32 high and have a rough in between 10 14.

The standard toilet dimension for rough ins is 12 inches but in some instances it may be 10 or 14 inches. Waste drain pipes for toilets in modern plumbing systems are either 3 inches or 4 inches in diameter. Flush bushings kind of look like hockey pucks. In most homes pvc drain pipe is used instead of metal pipe.

Not every toilet requires the same size hole and clearances also vary but there is a standard size and placement that works for most models.