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

Our review of the Core Tarps Extreme Heavy Duty 20 Mil tarp finds it best suited for homeowners and outdoorsmen who want a no-nonsense, heavy poly cover for long-term protection. The single biggest reason to buy is its construction from 100% virgin polyethylene and a 20 mil thickness, which together deliver a noticeably heavy, tear-resistant sheet that stands up to rain, wind and UV exposure better than thin, recycled alternatives. It feels weighty and finished to the full listed size, so buyers get the full protection they expect without losing inches at the edges.

Key Features

• Finished Size: The tarp is sold at the full listed dimensions so you get an actual 24 x 36 sheet rather than a smaller finished piece, which simplifies planning and coverage.
• 100% Virgin Polyethylene: Made from pure, non-recycled material for improved strength and resistance to tearing and rot compared with mixed-material tarps.
• Reinforced Edges and Grommets: Metal grommets spaced every 24 in and reinforced hems allow secure tie-downs and reduce fraying at attachment points.
• UV Resistant and Waterproof: The material blocks sun damage and keeps rain out, making it suitable for year-round outdoor exposure.
• Multipurpose Design: Useful for roof patches, boat covers, patio protection, camping and temporary canopies, offering flexible utility for many tasks.

Who It's For

The tarp is a good fit for DIY homeowners repairing a roof patch, boat owners needing seasonal covers, and campers wanting a durable ground or shelter tarp. Its heavy weight and UV resistance make it practical for extended outdoor use in areas with sun, rain and wind.

Those who need ultra-lightweight, packable tarps for backpacking or tent flys should look elsewhere, as the 20 mil virgin polyethylene construction prioritizes durability over packability and minimal weight.

Pros & Cons

Pros

• Very durable material and 20 mil thickness give strong resistance to tears and punctures.
• Finished size means the tarp dimensions match expectations for coverage without surprises.
• Reinforced edges and metal grommets make secure tie-downs straightforward.
• Effective waterproofing and UV resistance protect items in varied weather.

Cons

• Some users report grommets can tear out under extreme strain, so heavy loads may require additional reinforcement.

Specifications

Our Verdict

For users who need a heavy, weatherproof tarp for roof repairs, boat covers or durable camping shelter, this 20 mil virgin polyethylene tarp is a solid value. It delivers on thickness, finished sizing and weather protection, though those planning to subject grommets to extreme loads should add extra reinforcement.

Frequently Asked Questions

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

Are the edges reinforced?
Yes - the tarp has reinforced hems and metal grommets spaced every 24 in for secure tie-downs.

Will this work for long-term outdoor use?
Yes - the tarp is UV resistant and weatherproof, suitable for seasonal or extended outdoor exposure.