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How to Build a Rock Floor

Add a touch of rustic charm to the interior of your home with a rock floor. A rock floor will bring nature in and add architectural interest to your home, a common feature in rustic design. Purchase rocks from a home improvement or garden supply store. For a really personalized touch, collect the rocks yourself for this project. The completed projects will create a natural, one-of-a-kind look in your home.

Things You'll Need

  • Mortar
  • Trowel
  • Rocks
  • Level
  • Mallet
  • Sponge
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Instructions

    • 1

      Starting in a corner of the room, cover a two-foot square area with mortar. Use a trowel to apply a two-inch deep smooth layer of mortar on the ground.

    • 2

      Cover the back of a rock with a thin layer of mortar. Use a trowel to apply the mortar to completely cover the back of the rock.

    • 3

      Firmly set the mortar-covered side of the rock into the mortar bed. Lay a level on top of the rock to determine how level it is. If the rock is unlevel, bang a mallet on the surface of the rock that is sitting higher until the rock is level in the ground.

    • 4

      Continue the process of adding rocks to the floor, following the instructions in steps 2 and 3. Use your creativity when adding rocks to the floor, fitting in different sizes and colors in locations that you think look visually appealing.

    • 5

      Fill the gaps between the rocks with mortar. Use a trowel to work the mortar between the gaps in the rocks.

    • 6

      Wipe the mortar off of the surface of the rocks with a damp sponge. Allow the floor to set for 48 to 72 hours.