How to Faux Stone a Concrete Outside Floor

Prepare the Floor

• 1

  Clean the concrete floor of all debris by first sweeping the entire surface.

• 2

  Use a sander and 80-grit sandpaper to remove any bumpy material or old paint on the concrete. Sand the surface until smooth.

• 3

  Use kitty litter to soak up fresh oil spots and commercial adhesive remover for any sticky substances like gum, glue or tape.

• 4

  Apply a cement repair solution to fix any cracks or holes in the concrete.

• 5

  Spead trisodium phosphate on the concrete. TSP removes harsh stains and acts as a degreaser for especially tough oil and grease stains. Wet the concrete floor and sprinkle stain locations with TSP. Let the TSP soak for 30 minutes, then scrub the area with a stiff broom. Clean the area by rinsing with warm water. Repeat the rinsing process as necessary.

• 6

  Allow concrete floor to dry for three or more days.

• 7

  Coat the concrete. Apply a primer or stain blocker to the concrete floor. Roll two coats of primer over the entire floor and let dry completely.

Creating faux stone

• 8

  Paint the entire concrete floor with white latex paint.

• 9

  Lay out the shapes for the stone pattern. For instance, to incorporate a flagstone design, use painter’s tape to create different sizes of faux stone on the concrete.

• 10

  Apply your base color. For example, use gray paint for flagstone.

• 11

  Paint the concrete using a paint roller or brush. You can paint over the tape.

• 12

  Dab a sea sponge in areas to give your stone an earthy texture.

• 13

  Let the floor dry completely before removing the painter’s tape.

• 14

  Remove all the tape to revile your designed faux flag stone floor. The white latex paint represents the mortar between the stone.

• 15

  Finish your concrete floor by applying two coats of polyurethane to give the floor lasting protection and shine.