How do you keep a tarp in place? Simply putting a tarp on top of an object won’t give full protection to your investment – depending on the weather, the tarp may even blow off. In all instances, a tarp needs to be held in place by tie downs or bungee cords. We carry rubber tie downs in sizes ranging from 10 to 41 inches long . All tie downs are made from weather-resistant EPDM, or molded rubber, that will stretch approximately one and a half times the original length. Put one of these tie downs through the grommets on a tarp to keep it in place, or, for canopies, put the tie down through the grommet and attach to the steel frame of the structure.