Faux Stone Accent




This is a fun project that didn't cost a lot of money. I wanted stone around my 3 way fire place, so I decided to do it myself.

I took that white Styrofoam , you can buy in handy packs at Home Depot 2' x 4', with a sharp knife I cut them into round pieces and oval pieces , and on the side facing out I knocked off the edges to make them more round . Glued them to the wall with drywall mud , then covered the entire outside pieces of rock with drywall mud , and painted them to look like rock mostly browns and grays next with white , then I used real cement as grout

Step 1:

There was some dark blue tile around the mantle. After i finished the stone on the chimney, I made the tiles with the real stone for the mantle. The chimney was just drywall before.

Step 2:

I priced it out with just the fake stone would have been over $ 2000.00 just in materials alone
so I decided to try and make my own @ about 150 dollars

...so i got the stuff and started fitting the white foam stone on the wall

Step 3: Supplies Needed

-2 inch foam cut with a sharp knife to resemble rocks
-dry wall mud to stick foam rocks  on wall and and smooth over the foam
-assorted paints found at discount, in correctly mixed ones are cheap
-ready mix cement for grout lines

Step 4:

Then I made some tiles to match my foe rocks. I made a frame of foam and filled it with cement , and just pressed some stones I found in the back alley in to the cement . I set up the cement frame on some waxed paper , so i could remove it easily ,once the cement was dry,

Step 5:

rocks from alley

Step 6:

This is what the tile looked like before I put it on the fireplace

Step 7:

Step 8:

They were a little heavy , so to glue them on the mantle, I had to brace  them till they were dry

Step 9:

It is pretty hard to tell that the finished product is not real stone. The trick to making the stone look real is using a variety of paints, some glossy, some flat. You can use brushes, sponges, a toothbrush to mist the paint on. My daughter quite enjoyed adding her artistic touch to making them look realistic.
Using stiff brushes and spoons to put the grout in between the fake stone also worked well.



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    5 Discussions

    peter moore

    5 years ago

    Lol yeah you would definitely have to pretend they were very heavy when you throw them at people , but the coating of drywall mud on the outside of the rock does make them quite hard , in some places I have it so thick that it actually feels like rock

    peter moore

    5 years ago

    Well the big rocks were made with that white Styrofoam cut into ovals with a sharp knife, then for the side that faces out the corners were carved off to make a more around like a rock, then a nice coating of drywall mud on the backside , to glue them to the drywall , The drywall mud held them to the wall very well , then by hand with a rubber glove the outside of the rock was smooth over with drywall mud as well , then the rocks were painted with mostly gray's and Brown's tone down with a little white paint . After the Styrofoam looked like a rock then cement was used as a Grout line , I just use the handy sheets of Styrofoam purchased from Home Depot 2' x 4' and cut them down ,

    Cheese Queen

    5 years ago on Introduction

    I love this look, but would have appreciated a more detailed explanation of how you did the faux stone on the chimney.

    1 reply
    PS118Cheese Queen

    Reply 5 years ago on Introduction

    Agreed. The foam stones look great and I'd like to know how to get that look!

    (I'd make one just to throw at people! >:D )

    peter moore

    5 years ago on Introduction

    this was a rewarding project given how little was spent , there was a bit of a learning curve on cutting the foam , , painting them ...and grouting them , but you will get the hang of it after a few .