White 20 x 40 Heavy Duty 7 Mil Tarp Cover - Waterproof UV Resistant

In this review of the White 20 x 40 heavy duty tarp, the bottom line is simple: this tarpaulin is for anyone who needs a full-size, durable cover that stands up to weather and heavy use. The reviewer found the single biggest reason to buy is the combination of 100% virgin polyethylene construction and reinforced edges, which delivers reliable tear resistance and true finished dimensions so you get the full 20 ft by 40 ft coverage without surprises.

Key Features

• Finished Size: The tarp is supplied to the exact 20 x 40 finished dimensions, so users do not lose inches to hemmed or undersized material when they need full coverage.
• 100% Virgin Polyethylene: Made from pure, non-recycled polyethylene, the material resists rot and maintains strength better than mixed or recycled blends.
• Reinforced Edges: Strong reinforced hems reduce the risk of tearing at stress points, prolonging useful life under repeated tie-downs.
• Metal Grommets: Grommets spaced every 36 in provide secure anchor points for ropes or bungee cords and make installation straightforward.
• Weatherproof and UV Resistant: The tarp resists water and UV exposure so it can be used year-round for covers, shelters, or temporary repairs.
• Multipurpose Design: Sized and built to cover roofs, boats, pools, patio furniture, or serve as a groundsheet or canopy, offering broad utility.

Who It's For

This tarp suits homeowners, contractors, and outdoor enthusiasts who need a large, dependable cover for seasonal storage, emergency roof patches, or covering equipment. The finished 20 x 40 size makes it practical for patios, pool areas, or larger loads where full coverage is essential.

Those seeking a lightweight, decorative canopy or a small camping tarp should look elsewhere; this product is focused on heavy duty protection and utility rather than minimalist weight savings or aesthetic design.

Pros & Cons

Pros

• Durable 100% virgin polyethylene resists tearing and rot for longer service life.
• Finished size delivers the full 20 x 40 coverage without shortfall.
• Reinforced edges and metal grommets every 36 in make secure tie-downs easy.
• Waterproof and UV resistant, suitable for year-round outdoor exposure.

Cons

• At heavy duty thickness, the tarp is bulkier to fold and store compared with lighter tarps.
• All-white color can show dirt more quickly when used in dusty or muddy conditions.

Specifications

Our Verdict

The White 20 x 40 7 mil tarp is a practical, value-oriented choice for anyone needing robust, full-size coverage. Its virgin polyethylene construction, reinforced edges, and properly spaced grommets make it a dependable option for protecting equipment, patching roofs, or creating temporary shelters; it is especially good value for projects that demand weatherproofing and longevity rather than minimal weight.

Frequently Asked Questions

Is this tarp waterproof?
Yes. The tarp is designed to be waterproof and weatherproof for year-round outdoor use.

How are the edges finished?
Edges are reinforced and hemmed to reduce tearing, with metal grommets set every 36 in for secure tie-downs.

Will the listed size be the usable size?
Yes. The product is sold in finished size so the stated 20 ft x 40 ft reflects the actual usable tarp dimensions.