How to Level a Shower Floor

shower floor
  • 5-8 hours
  • Beginner
  • 80-120
What You'll Need
Premixed thinset mortar
Smooth-edge & notched trowel
Cement board
Leveling shims
2.5-inch deck screws
Drain extension

If you have an uneven shower floor, you'll need to know how to correct the mess as soon as possible. An uneven shower floor can prevent proper draining, and dips in the flooring can cause puddling or potential wicking hazards. This article explains the simple steps you can take to level your shower floor and prevent further damage. Hopefully, your tiling hasn't been laid on an uneven bed. If it has, you'll need to pull it up. This is crucial, as you need to have a surface that won’t release your freshly-laid mortar bed.

Step 1 - Applying the Mortar

Premixed thinset mortar is available at most home improvement and hardware stores. It is inexpensive. Premixed mortar will also be the quickest, hassle-free route to leveling your shower floor. Thinset mortar is the best choice for your shower. Don't be persuaded into getting cheaper mortars, such as brick mortar, that could lead to mildew or mold. Be weary when laying your mortar that it doesn’t go down your drain, or you could do more harm than good.

When you're ready to apply the mortar, start by spreading it around the entire surface using a smooth-edge trowel, ensuring it reaches all the nooks and cracks in the area. Next, rake over the surface with the notched trowel, thus creating a gripping, adhesive surface. After allowing it to dry, use your level to correct any neglected areas.

Step 2 - Laying Cement Board

If you're still wary about the evenness of your shower floor, use cement board to guarantee a level surface. This is accomplished by cutting your cement board into the shape of the desired surface. Once this has been done, you can use the shims to place the cement board. Although the shims aren’t necessary, they help to prevent problem areas. It is crucial that the mortar is not dried when you complete this process. The mortar must still be wet and spread in a level pattern. Once the mortar has dried after laying the board, you may remove the shims. Use your 2.5-inch deck screws to lock the cement board to the mortar.

Step 3 - Small Adjustments

A simple adjustment you may have to make is to extend your drain. If you’ve applied enough mortar to raise the level of your flooring, your drain may be sunken down in comparison to your floor. This is easily aided by using a drain extension which fits securely into the drain and can be found at any hardware store.

Step 4 - Commence Tiling

Now that you’ve just made a sturdy, level, and secure shower base, you may now continue on to retiling your shower floor. Once you’ve finished, you can enjoy your functional and relaxing home improvement.