Forterra is an engineered, structured panel designed to offer sustainability, durability, and high strength-to-weight ratio compared to other composite panel offerings. The panel comes with surfaces up to 60 in. long horizontally, and up to 2 in. thick. Both the panel's cell structure and the skins feature recycled content, and they reportedly withstand weights that cause traditional composite panels to sag. TheStowCompany.com (616) 399-3311