Boen general all-purpose blue tarp is commercially and residentially used as construction, roof, landscaping and outdoor tarp covers. Tarp can be placed underneath a shelter to prevent the bottom from absorbing water, which also serves as an additional buffer against dirt, insects and rocks. Let Boen all-purpose blue tarp protect you and your products. BOEN 20-ft x 10-ft Blue Waterproof Commercial Polyethylene 5-mil Tarp | BT-1020