In Stock Clear and Opal color 16mm Triple Wall X Structure Polycarbonate Panels. Size 4'X20' and 4'X16' UV coated for outdoor application and direct sunlight exposure. Ideal material for pergola, gazebo, greenhouse, sunroof, etc... Can be easily cut to any size. Pick up and Delivery available. We accept Debit, Credit Card, E-Transfer. 403-604-4043 ECOFORT INNOVATIONS CORP WWW>ECOFORT.CA 2104-8800 Venture Avenue, SE, Calgary. Open Monday-Friday, after hours and on weekends by appointment. We have best selection of Polycarbonate Material and Accessories for Installation.