How To Build Stone Fireplace Hearth

A stone fireplace hearth is a beautiful and functional addition to any home. It can provide a warm and inviting focal point for a living room or family room, and it can also help to improve the efficiency of your fireplace. While building a stone fireplace hearth may seem like a daunting task, it is actually a relatively simple project that can be completed in a weekend with the right tools and materials.

Materials You'll Need

Fireplace hearth stone
Mortar mix
Concrete backer board
Construction adhesive
Grout
Grout float
Caulking gun
Caulk

Tools You'll Need

Hammer
Chisel
Trowel
Notched trowel
Grout float
Caulking gun

Step-by-Step Instructions

1. Prepare the area. Clear away any furniture or other objects from the area where you will be building the hearth. If there is an existing hearth, remove it carefully.

2. Install the concrete backer board. Cut the concrete backer board to fit the area where the hearth will be installed. Apply a bead of construction adhesive to the back of the backer board and press it into place. Secure the backer board with screws.

3. Set the hearth stone. Apply a thin layer of mortar mix to the back of each hearth stone. Set the hearth stones in place, starting from the center and working your way out. Use a level to ensure that the hearth stones are level.

4. Grout the hearth. Once the mortar has dried, apply a thin layer of grout to the joints between the hearth stones. Use a grout float to press the grout into the joints and remove any excess.

5. Caulk the hearth. Apply a bead of caulk around the perimeter of the hearth, where it meets the floor. This will help to seal the hearth and prevent moisture from getting underneath.

Allow the mortar, grout, and caulk to dry completely before using the fireplace.

Tips for Building a Stone Fireplace Hearth

Use a variety of hearth stones to create a unique and beautiful look.
If you are using a natural stone, seal it to protect it from stains and moisture.
Be sure to level the hearth stones carefully to prevent any tripping hazards.
Allow the mortar, grout, and caulk to dry completely before using the fireplace.