Andrew 
When installing a new toilet, you must measure the distance between the toilet flange and other bathroom features. The distance should be measured from the center of the toilet’s flange, which is most likely located near the middle of the toilet. This measurement is the same point where the toilet rough-in is made into the wall. A standard measurement is 15 inches, but 18 inches is more than enough for added comfort. Make sure to follow the manufacturer’s instructions for the particular type of toilet you are installing.
For the discharge hole, it should be approximately 12 1/2 inches from the back wall. To determine the distance, measure the distance between the toilet’s center flange and the unfinished wall, adding the unfinished wall thickness. The toilet flange is centered at the center, but it can be further off from the wall if the distance is greater than 30 inches. Moreover, the drain hole should be at least 16 inches from the floor. The drain pipe is considered a vertical centerline. Then, there are the buffers for the toilet and sink. Generally, the buffer is around 15 inches or 20 inches from the toilet’s front rim. The sink should be at least 31 inches from the floor.
You should also know the measurements for pipes and drains before starting the remodeling process. The pipes must have adequate capacity to accommodate the water, drains, and vents. Also, remember that you must comply with local codes when installing pipes and fixtures. In addition, you should take into account the thickness of the wall finishing materials, such as drywall, tile, and wallboard. You must also check for leakages when installing plumbing fixtures in bathrooms.
In addition, you should also check the rough-in dimensions for the toilet. You should measure the toilet’s flange center from the wall studs. Be sure to account for the thickness of the wall, as drywall adds half an inch to the wall. If you are installing a wall-hung toilet, you must measure the height from the floor to the center of the waste drain. After you’ve done this, you can start installing the new toilet.
When determining the dimensions of your toilet, you must consider the length of the wall behind the toilet and the width of the waste pipe. You need to take measurements of both the wall and the waste pipe, if necessary. In some cases, you need to remove the bolt caps to fit the new toilet. In such cases, it’s advisable to visit a plumbing store where you can try out different sizes and configurations. Once you have found the right size and shape, you’ll be on your way to a successful bathroom remodel.
The size of the drain pipe is another crucial detail. Insufficient drain pipe size can lead to clogs, while over-sized drain pipes can leak and damage other parts of the bathroom. Choose the right size and type of drain to avoid these problems. A plumbing contractor will use a chart to determine which type of pipe you’ll need. This will save you time and money. You should also consider the type of plumbing pipe you’ll use in the bathroom.
