Question: Does the toilet flange need to be bolted?

Yes, you have to screw or bolt the toilet flange to the floor. If you do not, you risk not securing the toilet enough to prevent rocking that may damage the wax seal, the drainage pipe, or the floor.

Do you need to bolt down toilet flange?

5 Answers. The bottom of the flange needs to be sitting flush with (or not more than 1/8″ above) the finished floor or else the toilet will rock. The flange should be fastened to the floor. Dry fit the toilet to make sure it doesn’t rock.

Should a toilet be bolted to the floor?

Remove the fixing bolts

Your toilet should be fixed to the floor using several bolts. Carefully unscrew the nuts and washers to help free the toilet. Your toilet may also have silicone around the base to make it more secure.

Does toilet flange go inside or outside pipe?

Install a toilet flange on the outside. This can be done with a hammer and chisel. If the flange is cast iron with a rubber gasket, you should be able to remove the cast iron with a hammer and chisel, remove the rubber gasket with a sharp knife, then replace the gasket and the flange.

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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.

How far should toilet flange sit above 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.

How do you bolt a toilet flange to a concrete floor?


  1. Cut off the Old Flange and Obstructions. After you remove the toilet, you will probably find an existing toilet flange. …
  2. Scrape off Old Wax Ring. …
  3. Pick the Correct New Toilet Flange. …
  4. Place T-Bolts in New Toilet Flange. …
  5. Position Toilet Flange. …
  6. Drill Holes Into Concrete. …
  7. Screw Toilet Flange Onto Concrete.

How tight should toilet tank bolts be?

Bolts Don’t Have to Be Extremely Tight

It’s important to keep in mind that the toilet tank is not intended to take weight and strain. The tank-to-bowl bolts are merely there to ensure the rubber seal between the tank and bowl is snug and leakproof. Tank bolts do not need to be tightened to an extremely snug position.

How far apart are toilet flange bolts?

Standard Fixtures Bolt holes must be between 5-1/4” and 8” apart. You will also need at least 3/4” clearance from the center of the bolt holes to the back of the toilet tank.

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What size are toilet flange bolts?

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