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Standard 4 x 3-Inch Toilet Flanges The 3-inch bottom is the correct size for fitting the schedule 40 pipe most frequently used in home drains. The 4 inches at the top of the flange give you a little extra wiggle room, reducing the chances that water will seep through the wax ring when flushing the toilet.
What is a standard size toilet flange?
The most common size is the standard 4×3 inch-flange. Its top is four inches wide, while the bottom has only three inches in diameter. The former connects to the toilet, whereas the bottom element fits the outlet drain.
How do I choose a toilet flange?
With the toilet removed, you can see the toilet flange and measure its height above the floor. The optimum flange height to aim for is 1/4 inch above the finished floor. This typically allows for almost any type of wax ring to be used and still ensure a good seal.
Does toilet flange go inside pipe?
Buy an inside closet flange. This toilet flange is designed to glue on the inside of the pipe or expand inside the pipe. The flange should be sitting with the bottom edge flush with the top of the floor. If it isn’t, then you will have to cut away the old flange.
Are toilet flanges standard?
The standard flange size is 3 inches in diameter. The standard plumbing hole for a toilet is the flange, the waste pipe that fits through a hole in the floor. Comprised of two parts — a pipe and a ring bolted to the floor — the flange will connect the toilet to the household’s waste line.
Are toilet flanges universal?
Plastic or polyvinyl chloride (PVC) toilet flanges are the most commonly used flanges in both residential and commercial toilets. All PVC toilet flanges are manufactured to fit three-inch or four-inch drainpipes.
How do you measure toilet clearance?
Measure from the wall behind the toilet to the center of one of the closet bolts (which hold the toilet down). If the toilet has four closet bolts, measure to the center of one of the rear ones. Then measure from the center of the mounting holes to the back of the new toilet you’re considering.
Should toilet flange go on top of tile?
The toilet flange needs to be on top of the finished floor. Meaning the bottom edge of the flange needs to be on the same plane as the toilet. So if your toilet sits on the tile, the flange needs to be on top of the tile too. The spacing of the toilet exit “horn” and sealing surface is designed for this height.
What fits between a closet flange and toilet bowl?
A wax ring is used to seal the fit between the toilet and the closet flange, and the toilet is bolted to the steel ring and not to the bathroom floor.
What size is a cast iron toilet flange?
4 x 5 in. Standard Cast Iron Closet Flange.
How do you measure toilet flange?
The Distance To Set The Toilet Flange From The Back Wall. You’ll want to set the center of the water closet flange 12 inches from the finished back wall. Don’t measure from the base molding! Take this measurement from the finished wall.
Can you put a new toilet flange over an old one?
Either slide the new closet flange bolts into the old flange before adding the extender or add them after you adhere the extender to the old flange. Consequently, we chose to add one of the bolts to the old flange first since it was a tight fit. Add metal washers and nuts to the closet flange bolts.
Should I screw down toilet flange?
Yes, you have to screw or bolt the toilet flange to the floor. A bad seal between the toilet and the flange or the flange and the pipe can cause leakage, which will damage the bolts that hold the flange to the pipe or allow horrible smells to seep into your bathroom.
How thick is a toilet flange?
If it’s at the same level, or no more than 1/4 inch below it, a regular wax ring, which is between 3/4 and 1 inch thick, is all you need. If the flange is recessed deeper than that, you need an extra-thick wax ring, which is about an inch thicker than a regular one.
Is 3-inch pipe OK for toilet?
In new construction, 4-inch drains can be installed from every toilet, or you can run a 3-inch drain line from a toilet to the home’s main 4-inch drain pipe — the line running from the house to the sewer or septic system. Older homes may have only 3-inch drains, so that’s what you have to work with.
How do you know if you need a new toilet flange?
If you notice a lot of water pooling at the base of your toilet and inspect to find that your flange is cracked or broken, it’s time for a replacement.Signs of potential flange damage: Any leak from the bottom of your toilet. Unpleasant odors. A loose toilet that shifts or rocks.
How do I know if my toilet is a 10 or 12 rough?
If the old toilet is still there, measure from the center of the capped bolts (on the bottom) to the wall (not the baseboard). There should be 24 inches of clearance from the wall facing the bowl and 15 inches on each side as a guideline. If your measurements are between 11.5 and 12.5 inches, it is a 12-inch rough-in.
How many inches should a toilet be from the wall?
Most codes require at least 15 inches (measured from the center of the toilet) from any side wall or obstruction and not closer than 30 inches center to center to any other sanitary fixture. (The NKBA actually recommends 32 inches.) There should be at least 24 inches of clear space in front of a toilet or bidet.
