Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover - Waterproof, UV

In this review the Core Tarps Extreme Heavy Duty 20 Mil Tarp proves to be a straightforward choice for anyone needing a tough, weatherproof cover. The bottom line is that this tarp is built for durability: finished size sheets of 100% virgin polyethylene with reinforced edges and metal grommets make it ideal for long-term outdoor protection rather than a light temporary cover. Reviewers who prioritize thickness, tear resistance, and reliable waterproofing will find the tarp meets those needs without fuss.

Key Features

• Finished Size: The tarp is sold at its full, true size so customers receive the complete 30 in x 30 in sheet without the common shortfall on each side.
• 100% Virgin Polyethylene: Using non-recycled polyethylene increases tear resistance and reduces premature rot compared with mixed-material tarps.
• Strong Grommets: Metal grommets every 18 in allow secure tie-down with rope or bungee cords to keep the cover anchored in high wind.
• Reinforced Edges: Sewn and reinforced edges work with the 16 x 16 weave to prevent fraying and spreading of tears at stress points.
• Weatherproof Protection: The extra-thick 20 mil material is both waterproof and UV resistant so it stands up to rain, sun, and snow for extended outdoor use.

Who It's For

The tarp is best for homeowners, campers, and tradespeople who need a heavy, multipurpose cover for roofs, boats, patio furniture, pools, or jobsite materials and who value durable construction and true-to-size dimensions. It is also a good option for anyone making temporary canopies or ground covers while painting or working outdoors.

Those looking for a lightweight, highly breathable or decorative tarp should look elsewhere; this product is optimized for protection and longevity, not minimal weight or aesthetic coatings. If colorfast appearance is a top priority, note that some users report color fading to a dull gray over time.

Pros & Cons

Pros

• Heavy 20 mil thickness and 100% virgin polyethylene deliver strong tear resistance and long life.
• Finished size guarantee removes sizing guesswork and ensures full coverage.
• Metal grommets every 18 in and reinforced edges make anchoring secure and reduce stress tears.
• Waterproof and UV resistant for year-round outdoor protection.

Cons

• Heft and thickness make it heavier to handle than economy tarps, which may be inconvenient for some uses.
• Some customers report the printed color can dull to gray after weeks in sun-exposed conditions.

Specifications

Our Verdict

The Core Tarps Extreme 20 Mil tarp is a practical, heavy-duty cover for anyone who needs dependable weatherproof protection and true-to-size sheets. Its construction of virgin polyethylene, reinforced edges, and frequent metal grommets justify choosing this tarp when durability and secure fastening matter more than lightness or long-term color retention.

Frequently Asked Questions

Is this tarp fully waterproof?
Yes, the 20 mil virgin polyethylene material is waterproof and designed to keep out rain and snow.

How often are grommets placed?
Metal grommets are installed every 18 in to allow secure tie-downs across the edge span.

Will the color last in sun exposure?
While the material is UV resistant, some users report that the printed color can fade to a dull gray after prolonged sun exposure.