Our Shed bases are made with Heavy Duty Materials. Our Shed Bases raise garden shed few inches from the ground to prevent it from sodden soil & Water Damage. All Our Plastic Shed Bases Are Weather & UV Resistant. We Promise Best Price Guaranteed. Easy To Install With Snap-Clip Interlocking Fixings. Saving You Lots Of Time & Money. Easy to install. Complies with regulations. Eco friendly. High strength plastic gravel base for shed .