These are not your average plastic blue tarps. Made from rugged 600 denier polyester with a PVC coated finish for a fully waterproof and super durable barrier, our Heavy-Duty Ground Tarps are sized to fit perfectly beneath the full range of Springbar Tents. Using a Heavy-Duty tarp is recommended in wet weather, long term camps, and in general to protect and extend the life of your tent’s floor. Brass corner grommets give this tarp versatility for a wide array of applications around camp or home