BillyOh StoreAll Apex Plastic Shed with Foundation Kit. What is it made from? Durable & Long Lasting Vinyl. The vinyl plastic is not only weatherproof and durable but it is long lasting and fire retardant. The StoreAll is constructed using a strong metal roof truss, designed for a long lasting structure, it is built to last. Twin air vents located on either side ensure that air can freely flow in and out, preventing heat building up in direct sunlight. A metal foundation is built into the StoreAll, providing a solid base which ensures a strong foundation for long-lasting storage ...