Won't find these at Home depot incredible quality and heavy duty tarp, If you want something well protected this may be it. 

Built to military specification MIL-PRF-20696 Type 2, Class 2, this heavy-duty 7' x 15' OD Green tarp is constructed from vinyl-coated nylon (polyamide) fabric weighing up to 18 oz/sq yd. Size is stamped directly on the tarp. Designed for demanding field use, it features tie ropes and grommets for secure rigging and is engineered to resist aromatic hydrocarbons, fire, oil, weather, mildew, and moisture. Color matches Federal Standard 595 No. 34094 (OD Green / Green 383). NSN: 8340-01-487-5610.

Key Features:

• Size: 7' x 15' (stamped on tarp)
• Material: Vinyl-coated nylon (MIL-PRF-20696 TY2, CL2)
• Weight: 18 oz/sq yd maximum Weights 19Lbs
• Color: OD Green, FED-STD-595 No. 34094
• Includes tie ropes and grommets
• Resistant: fire, oil, weather, mildew, waterproof, aromatic hydrocarbon fluids
• NSN: 8340-01-487-5610