The Gold Mountain Storage Shelter W20’xL40’xH16′ – Double Truss 610g 21.5oz PVC provides shelter on farms, construction sites, auto shops and more. The whole structure is built with galvanized steel tubes which helps the storage shelter stand under toughest weathers. You don’t have to consider any other products when it comes to store and protect your valued things. This double truss storage shelter is made for you.The peak shelter helps snow to slide off faster while the dome shelter provides more space on the top of the shelter. However, both types of shelter have the same durability and efficiency. The PVC fabric is stronger than PE and is therefore more resistant to weather effects. Plus, PVC has a longer lifespan.