Not only is our all-weather deck box made of 100% polystyrene, which is a durable outdoor material, but it’s also UV stabilized to reduce fading and corrosion from the elements. This pre-treatment also ensures it won’t crack or discolor — even after prolonged sun exposure. So, rain or shine, snow or sleet, this durable deck box will maintain its integrity, both structurally and aesthetically, for years to come.