Most drain pipes are 3 inches in diameter, while older homes may have larger pipes that are 4 inches in diameter. To correspond with the drain pipes, flanges are also available in 3- and 4-inch diameters. The hole should be large enough to fit the flange. In most cases, 4 inches in diameter will be adequate..
How do you cut plywood for toilet flange?
Does toilet flange go inside pipe?
This toilet flange is designed to glue on the inside of the pipe or expand inside the pipe. Leave the old toilet flange right in place and glue on the new one at the right elevation for the floor, if it’s plastic. The flange should be sitting with the bottom edge flush with the top of the floor.
How do you install a toilet flange on a wood floor?
Can you install a toilet on plywood?
If your toilet flange is below the grade of your plywood subfloor, you may need to use a flange extender to adjust it to its proper level. Flange extenders are available at most home improvement centers and plumbing supply houses.
Is the toilet flange supposed to be flush with the floor?
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.
Should toilet flange sit on finished floor?
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.
Should toilet flange be screwed to subfloor?
The flange should be fastened to the floor. Dry fit the toilet to make sure it doesn’t rock. If it does rock, use shims to prevent rocking – just tightening the bolts probably will not stop the rocking but will risk cracking the toilet or breaking the flange.
Can a toilet flange be too low? In a typical toilet installation, the floor flange that sits inside the drain opening below the toilet should be positioned so that its bottom surface rests flush against the finished floor or no more than 1/4 inch above or below the floor.
How do I know what type of toilet flange I need?
The choice of toilet flange depends on the material of the DWV pipe it is being connected to. That means, if you have a PVC pipe connection, you should install a PVC closet flange. A cast iron connection will require a cast iron toilet flange, and so forth.
What type of plywood is used for bathroom subfloor?
Plywood as a Subfloor Material
Traditionally, exterior grade plywood has been the subfloor material of choice for many bathroom flooring projects. Plywood is made by gluing alternating layers of wood veneer. CDX plywood (¾”) in particular is used often because it has a high level of resistance to moisture and humidity.
Can you put a new toilet flange over an old one?
Apply a generous bead of 100% silicone caulk on top of the old closet flange. And to the bottom of the new closet flange extender. 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.
Do you put ceramic tile under toilet?
The bathroom fitters are unanimous—if you’re looking for a high quality finish, with a better seal against water damage, then always tile the floor first.
How do you cut a subfloor around a toilet flange?
How thick should plywood be for bathroom floor? Make Sure Your Subfloor is Structurally Stable
The installation guide for 1/4 inch HardieBacker recommends having wood subfloors made of 5/8 inch exterior grade plywood or OSB (oriented strand board) that is 23/32 inches thick.
Should I waterproof my bathroom subfloor?
Before finish flooring is installed on top of a plywood subfloor, you must waterproof the subfloor, especially in a bathroom. If you do not waterproof the subfloor, moisture can make its way under the subfloor and cause mold growth or other damage.
How do I know what toilet flange I have?
A 4″ x 3″ toilet flange has a four-inch topside and a three-inch bottom diameter. The bottom of this size flange will fit standard-sized drain pipes. In addition, a 4″ x 3″ toilet flange is the size of most closet bend pipes. If you are not certain about your toilet pipe size, this flange would be appropriate to use.
How do you get rid of blue toilet flange?
Are there different toilet drain sizes?
Making the Choice
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 fix an old toilet flange?
Should the toilet flange be above the floor?
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 a toilet flange need to be screwed to the floor?
Closet (toilet) flanges must be 1/4″ above a finished floor. This is so the wax ring seals properly to the flange and the hub on the toilet. If a proper seal is not achieved it will result in leaking. If the flange is lower than or flush with the floor they make foam rings that cover the distance for a proper seal.
Should a toilet be caulked to the floor?
Caulk Keeps the Toilet Secure
Think again! Caulk keeps your toilet secure the floor, and avoids any chance of injury or toilet malfunctioning. It’s actually required by the International Plumbing Code to caulk a toilet to the floor, and now knowing the reasoning behind it, why would you not want to?
Should a toilet flange sit on top of the finished 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.