If you’ve ever experienced an unsteady toilet or were seated on it at a family member or friend’s home, you don’t need the expertise in order to discern that something isn’t correct. The reason for the toilet’s rocking is because the flange’s height is high for the base of the toilet. To resolve the problem of the toilet rocking, you’ll need to make use of plastic shims to insert under the base and then caulk the base to form a water-tight seal.

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What Is the Reason for a Rocking Toilet?

In normal conditions, a toilet isn’t prone to movement or rocking when you sit in it. Because of the way the toilet’s drain flange along with the foundation of the toilet sit together, the space between the two must be large enough to allow the wax seal to slide between and also let the edges of your base be in contact with the floor. There is a problem with certain drain flanges that are slightly too far out from the flooring. This can cause the toilet to rock while the person is using the toilet.

What to Do If Your Toilet Is Rocking?

We’ve described the reasons why toilets rock. If the flange was higher on the ground, or the top of the base of the toilet in comparison to the place where the drain for the toilet is attached on the flange, was wider than the top, there shouldn’t be an issue. If you’re not able to work on the flange and taking measurements of the toilet’s bottom and sinks, there is a simpler fix. It is common to make use of a plastic shim to insert beneath the base to limit the movement. It is evident that the appearance of these shims differs from wood shims that you can find in a hardware store. Shims for leveling the toilet’s base are made of plastic to ensure they’re water-proof.

To put them in place, insert them into the gap between the floor and the base. It’s possible to manage with just 2 or 3 Shims. Once the shims are in place, you can trim any excess if they are sticking out too excessively. In the event that rocking becomes too severe, it is possible to take off the toilet and the old wax seal and set the toilet first. Once you’ve set your toilet, be sure that you don’t over-tighten the flange bolts since they are only required to be tight. If you exceed the tightness, you risk breaking the slots of the flange bolts or scratching the bottom of your porcelain toilet.

Once you’ve had the shims put in and everything appears stable and level, you’ll need to seal the space between the toilet’s base and the ground. This will help hold the shims securely and also assists in keeping the toilet in the right position.