Attractive exterior is UV-protected and stain-resistant -- never needs painting! Double-wall, High Density Polyethylene (HDPE) Panels feature steel wall-beams for added strength. HDPE floor is slip-resistant; won’t crack, chip or peel. Steep angle roofing allows for the quick drainage of rain and snow, provides a spacious, walk-around interior. Heavy-duty steel trusses increase strength. Screened vents provide airflow and keep pests out. Two large high-impact skylights help illuminate interior. Shatter-proof windows open for increased air circulation and securely lock. Customizable storage system included. Exterior padlock loop for locking. Mfr. 10 year limited warranty.