Stone Fireplace for Theatre Prop

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Intro: Stone Fireplace for Theatre Prop

I'm working on the set for "Into the Woods" and started with Cinderella's fireplace.

STEP 1: Big Sheet of Styrofoam Insulation

I started with a 4x8 panel of insulation styrofoam found at Home Depot. I cut it to a 4x6 piece(using the extras for the sides) and sketched out the front. I carved the brick shapes and peeled the plastic covering off. After cutting out the opening, I carved smaller bricks for the back of the fireplace.

STEP 2: The Power of the Heat Gun!

So, this is the cool part....if you melt the foam with a heat gun, you can soften the edges and melt the styrofoam appearance. This give you the brick and stone texture also.

STEP 3: Base Coat the Foam

Stick with water based paint...spray paint will melt the foam. I used flat latex interior paint. Then faux finished the stone, brick and wood.

STEP 4: The Mantle

This stuff can even be faux wood! You just carve and melt to your desired effect!

STEP 5: Back and Front

I used black card stock and gorilla tape to hold the pieces together. The whole thing looks like it weighs tons but is only about 5 lbs.

11 Comments

I love the looks of your fireplace...great job! What did you use to glue the side pieces to the front and the mantel to the top & sides?
I am sure it's too late...I'm so sorry. I didn't see the notification.. I hope your production went great!
Duct tape is the answer...to most of life's problems in fact LOL! And glue guns!
oh and duct tape! hot glue and duct tape
Thanks! It was a fun project. I just used hot glue. ;)
What did you use to make the mantle? If you cut it to 4x6 and used the scraps to make sides, all material is gone. Did you get a second sheet of foam board?
Hello!
I just say this, sorry for delayed reply. It was such a long time ago, I'm not sure. But yes, most definitely used more than one sheet. For the mantle, I cut the sheeting and made a box out of it, if that makes sense. look closely at the last picture, maybe you can see the seams?

Hello again, did you add any coating to strengthen the fireplace after painting?

nope. It was for a short run of Into the Woods. No long term protection needed.

Hi - What did you use to carve the fireplace bricks? Thanks!

I just used a mat knife. using the heat gun after the cuts made all the difference to smooth out the styrofoam.