What is a Toilet Rough In?

First time bathroom renovators often overlook or incorrectly record the most important measurement when planning to install a new toilet. That measurement is the toilet rough in. The toilet rough in refers to both the area where the waste outlet hole was placed to sit beneath the toilet, as well as the toilet rough in measurement. This is the measurement that determines which toilets will or will not work in the space. This can be confusing as the logical assumption would be to purchase a toilet with a base of similar size to the original toilet, but it's actually the distance between the drainage hole and the back of the toilet that's required. To accurately obtain this dimension, start at the back of the toilet and measure the distance to the center of the waste outlet hole on the underside of the bowl. Usually, this toilet rough in measurement is 12 inches (30.5 cm), but manufacturers also offer toilets to accommodate 10 inch (25.4 cm) and 14 inch (35.6 cm) toilet rough in measureme ... more

First time bathroom renovators often overlook or incorrectly record the most important measurement when planning to install a new toilet. That measurement is the toilet rough in. The toilet rough in refers to both the area where the waste outlet hole was placed to sit beneath the toilet, as well as the toilet rough in measurement. This is the measurement that determines which toilets will or will not work in the space. ... more