Core Tarps Classic 5 Mil Tarp Cover 20 x 20 - Durable Waterproof

Our review of the Core Tarps Classic 5 Mil Tarp Cover looks at whether this basic blue 20 x 20 tarp is worth buying for general outdoor protection. The bottom line: it is a solid, no-frills option for anyone who needs a finished-size, waterproof sheet that resists UV and everyday wear. It is best suited to homeowners, campers, and DIYers who want a heavy poly tarp with reinforced edges and grommets for repeated tie-downs, and who value full advertised dimensions without missing inches.

Key Features

• Finished size: The tarp is sold at its full stated 20 x 20 size so buyers get the complete coverage they expect without surprise shortfalls.
• 100% virgin polyethylene: Made from pure, non-recycled material for a thicker, more tear-resistant sheet that holds up better than mixed-material tarps.
• Reinforced edges: Double-stitched borders and a 10 x 12 weave count provide added strength where wear and wind stress are concentrated.
• Strong grommets: Metal grommets placed every 36 in allow secure tie-downs using rope or bungee cords for canopies, roof patches, or boat covers.
• Weatherproof and UV resistant: The tarp is treated for UV protection and rated waterproof so it can be used year-round in sun, rain, or snow.

Who It's For

This tarp is well suited to homeowners needing a temporary roof patch, campers who want a dependable ground or shelter cover, and outdoor furniture or pool owners who need seasonal coverage. The finished sizing and reinforced edges make it a practical pick for projects that require predictable fit and repeated use.

Those looking for a lightweight emergency tarp for one-off uses or a tarp made from specialized fire-retardant or breathable materials should look elsewhere, since this product focuses on durable, waterproof polyethylene rather than specialty textiles.

Pros & Cons

Pros

• Consistent finished dimensions mean accurate coverage for planned projects.
• Heavier feel and thickness from 100% virgin polyethylene improves tear resistance and longevity.
• Reinforced edges and metal grommets every 36 in make securing the tarp straightforward and durable.

Cons

• Some users report occasional tearing under extreme stress, so it is not indestructible for industrial-grade use.

Specifications

Finished size	20 x 20 ft
Material	100% virgin polyethylene
Thickness	5 mil
Weave count	10 x 12
Grommet spacing	Every 36 in
Color	Blue

Our Verdict

The Core Tarps Classic 5 Mil 20 x 20 tarp is a practical, value-oriented choice for homeowners, campers, and DIYers who need reliable waterproof coverage and true finished sizing. It combines a thicker feel from virgin polyethylene with reinforced edges and widely spaced metal grommets, making it a dependable shelter or cover for seasonal use; those needing industrial-grade tear resistance should consider heavier alternatives.

Frequently Asked Questions

Is the listed size the usable size?
Yes, the tarp is sold at its finished size so the 20 x 20 dimensions reflect the actual usable cover.

Can it be left outside year-round?
Yes, the tarp is waterproof and UV resistant so it can be used throughout the year, though extreme conditions can eventually cause wear.

How are the edges reinforced?
The tarp features reinforced edges with a 10 x 12 weave count and metal grommets spaced every 36 in for secure tie-downs.