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How To Measure Existing Toilet Rough In

Most rough openings are 12 inches, but can be as little as 10 inches and as much as 14 inches. Cut a hole in the subfloor just large enough for the bottom part of the toilet flange to sit.


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If the toilet is still in place, the center of the flange should align with the rear bolts that keep the toilet attached to the floor.

How to measure existing toilet rough in. The center of the toilet flange aligns with the middle of the toilet bolts that hold the toilet bowl in place. When you are figuring out your toilet rough in dimensions, you will end up with one of three basic measurements. The closet bolts are the bolts holding your toilet to the floor.

You could do this with a vanity cabinet in the store, a door, a nearby wall or post, or you could bring along your 4' level and do it that way. 1 place the end of a tape measure against the wall behind the existing toilet, not on the molding at. The center of the toilet flange should be 12 from the finished wall (add a 1/2 for drywall if measuring from the framing).

If your bathroom is compact in size or you live in an older home, there’s a good chance that your toilet rough in size will be 10 inches. If your existing toilet has four bolts, measure to the center of the back bolts. The flange rim will be fastened to the finished floor later.

If you’re remodeling your bathroom you might have removed the old toilet. Make sure to measure the distance from the wall (not the skirting board) to the center of the flange. Measure toilet rough in with existing toilet.

Therefore like people had said, measure from the bolts to the front of the toilet, go look for a 12 rough in toilet, and measure those bolts to the front of the toilet, if its the same, you will not lose any space in the front, you will just close the gap in the back of the toilet by 2. Measuring rough in on remodeled bathroom; Installing a toilet over an existing rough in is relatively simple, but relocating one can be tricky and should only be handled by someone with prior plumbing knowledge.

In most north american homes that dimension is either 10, 12, or 14 inches, the most common in today’s homes being 12. Well, with each toilet you put a vertical edge up against the back of the toilet (to simulate a wall), then measure from the bolt holes back to that wall. Keep this measurement handy when you go to purchase the replacement toilet.

Measure the distance from the closet bolts to the back of the tank on your desired toilet. If your existing toilet has four bolts, measure to the center of the back bolts. To do this, the floor must opened up, and if the bathroom is at basement level, this will entail breaking through the concrete.

One common standard toilet flange size is 4x3, and this is the measurement you will find beside most flanges available at your hardware or plumbing stores. If measuring for a replacement toilet, just measure from the back wall to the center of the toilet drain and write down the measurement. On either side of your toilet, you’ll see two bolts (usually with caps on them).

Measure the distance between the center of the drainage pipe, or preferably the flange, to the wall. This is how to measure toilet rough in and toilet dimensions (inches). Are there different size toilet flanges?

If your existing toilet has four bolts, measure to the center of the back bolts. Look for a toilet matching the distance. As i remodel the bathroom in our condo, i have found that the toilet drain pipe is really close to the wall (the last tenant actually cut into the wall behind the toilet to get the tank to fit) so i was thinking about a corner toilet with a triangular tank.

This gives you the length of the base of your new toilet. If there are four bolt caps, measure to the rear set of bolt caps. Measure from the center of those caps or bolts to the wall and that measurement is your “rough in”.

If the base of your new toilet is equal to or smaller than your old toilet's rough in, you should have no problems making the new toilet fit. To do this, take a tape measure and measure from the back wall (not baseboard) to the center of one of the rear closet bolts. 10 inch rough in toilet.

Keep this measurement handy when you go to purchase the replacement toilet. Oversize toilets may not fit in this area however. Do not measure from the baseboard, instead, measure from the wall (baseboard will reduce your measurement an inch or so).

Compare that measurement to the rough in of your old toilet. Usually, the distance is 12 inches, so a standard toilet will fit just fine in this space.


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