Rock Wall: Foam Board

Foam Board Rock Wall by Brian McGuire from Parkview Baptist Church in Monroe, LA.

To make a rock wall like the one pictured you cut "rocks" out of foam board and attach them to a larger sheet of foam board or wood (possibly even sturdy cardboard), and then paint them in shades of gray or brown.

Some paints, especially spray paints, will eat away at foam, so you will want to test your paint out before applying to a large area. However, you can also use this property to make foam board rock without having to do any cutting or gluing  You can paint around where you want rocks to be, which creates a grout like indentation when the paint eats away at the rock. Then you can paint the rocks that are left with non-eroding paint. There are some significant safety and environmental concerns to using this method though. Make sure to be in a well ventilated place when you do this, as the fumes can be harmful. Wearing a mask is suggested.

Foam board too expensive? You can use packaging foam, old or broken foam coolers, etc. Broken up, painted, and attached to a backing they can look great!

While the example above is fairly simple, you can get incredibly detailed with foam board rock by carving the foam...just check out the example below.

Picture provided by Hugs, Kisses, and Snot

You can find some more excellent pictures, as well as more detail on painting and carving techniques for this type of "stone" wall here. There's also step by step pictures of an amazing wall built for an Easter set here.

See All Rock Wall Ideas Here