DURABLE Our Modular Climbing Panels are coated using our unique StoneCraft Surfacing System. Unlike any other coating in the industry, our unique blend of concrete and polymers create a realistic stone-like finish that is flexible and suitable for interior or exterior use. Our coating is applied over 3/4" plywood to create a remarkably durable system. COST-EFFECTIVE Because we manufacture our own coating system, we are able to provide a superior product at a fraction of the cost of most modular systems...as little as $3 per square foot.