Diy Cardboard Brick Wall . Once the glue dries, paint the shapes with acrylic paints. Repeat the process one row higher. DIY Faux Brick Wall in Laundry Room Beauty For Ashes Diy faux brick from www.pinterest.co.kr I made only a small part to show, you can complete the wall in same way. The instruction are easy enough to follow so you can start recycling your cardboard boxes in no time. Press a brick into either end of the wall, using the guidelines and level to make sure they are at the right height.