Here is how to make your own doll house sofa out of foam board... we put it in our foamboard dollhouse. Here is a finished picture, followed by detailed instructions.
Print this template... I designed the file to be 10.5" x 8". You can scale it to be larger or smaller than that, or just come up with your own style!
Now lightly glue your template onto a piece of foam board. (You will peel it off when you're done cutting it out so don't use permanent glue stick.)
Using a straight edge, and a very sharp cutting device (see the picture for the type we like to use), trim out all the pieces...
The pictures below show what "score cut" means... The idea is, that when you score cut foamboard, you are only cutting through one layer of the paper and all of the foam... you do NOT cut through the second layer of paper. By doing this, you can gently fold back the foam board both directions and then pick out the foam. Score cutting is generally measured to be the same width as your foam board. The foam board we use is 3/16th of an inch thick (4 cm). If you have thicker foam board than this, please adjust the green line width in the template file.
Note how score cutting allows you to have a finished looking corner with no visible foam. It not only looks better, but helps you get your corners hot glued at 90 degrees.
Here are a couple of pictures showing the two ways you can glue your foam board that you have just score cut...
Next glue together the 3 couch (sofa) seat pieces...
Now take some fabric and "wrap" your sofa seat like it's a package, using hot glue where you would normally put tape if it were a package!
Next glue the bottom of your couch (sofa) back and sides to the middle of your fabric piece...
Now trace the sofa back shape onto the fabric...
Trim the fabric along your trace lines (you can leave some little fabric wings to cover part of the foam if you'd like, see the picture below)...
Glue the couch cushion to the back... the positioning of this is entirely up to you. You can make it flush with the floor, or raise it up a bit like we did.
Now stand up the sides of the couch and hot glue them... we put glue in the white "gap" and along the side of the couch cushion. Push down on it with your hand to make sure the glue makes good contact and keeps your couch at 90 degree angles...
Almost done! The edges of the foamboard show... so...
...trim them with trim, or extra matching fabric, or rope... whatever you think looks good!
That's it! Have fun!