My handyman took two 4 x 8 sheets of insulation board (about 1 inch thick styrofoam) - covered with yardage batting - bolted them to the wall and put a 2 inch frame around all - A DREAM COME TRUE! ! ! If the wall were bigger - I'd have added another 4 x 8 sheet. I can just stick blocks up or I can pin right into all of it.