Core Tarps 12 x 20 Brown/Black 20 Mil Heavy Duty Tarp - Waterproof

In this review the Core Tarps 12 x 20 Brown/Black 20 Mil Heavy Duty Tarp is evaluated for outdoor protection and multipurpose covering needs. The bottom line: this tarp is aimed at homeowners, contractors, and campers who need a full-size, heavy poly tarp that resists UV, water and routine wear. Its strongest selling point is the use of 100% virgin polyethylene and reinforced edges, which together deliver a noticeably thicker, weighty sheet that stays put and gives confidence when covering roofs, boats, patio furniture or a pool.

Key Features

• Finished size: When you order the 12 x 20 size you receive the full finished dimensions rather than a tarp reduced by hems or trimming, which makes planning coverage straightforward.
• 100% virgin polyethylene: The tarp uses pure non-recycled material for greater tear resistance and reduced chance of rot compared with mixed or recycled blends.
• Reinforced edges: Sewn or folded reinforced hems help the tarp resist fraying and focus stress away from the body of the tarpaulin when tied down.
• Metal grommets every 18 in: Heavy-duty grommets spaced regularly let you secure the tarp with rope or bungee cords to keep it taut in wind and weather.
• UV resistant and waterproof: The tarp is formulated to withstand sun exposure and shed rain and snow, suitable for year-round outdoor use.
• 16 x 16 weave count: The tight weave contributes to a dense, heavy feel that customers associate with durable truck-grade tarpaulins.

Who It's For

This tarp is best for homeowners covering roof patches, contractors needing a dependable cover for tools or materials, and campers or boat owners who want a sturdy, weatherproof sheet that will hold up in sun and rain. Its full finished dimensions and weight make it practical when exact coverage is required and when repeated reuse is expected.

Those seeking an ultra-lightweight or easily compact tarp for backpacking should look elsewhere, as the 20 mil thickness and heavy virgin polyethylene make this model more suited to stationary protection and heavy-duty uses rather than minimalist travel.

Pros & Cons

Pros

• Solid build from virgin polyethylene provides good resistance to tearing and rot for long-term outdoor exposure.
• Reinforced edges and metal grommets every 18 in make securing and tying down straightforward and reliable.
• Waterproof and UV resistant performance protects covered items through varied weather conditions.
• Finished size means buyers get the full 12 x 20 footprint without unpleasant surprises on fit.

Cons

• At this weight and thickness the tarp is less packable and heavier to handle for solo users or backpackers.
• Some users have reported isolated tearing under extreme point loads, so careful fastening and edge protection are still advisable.

Specifications

Brand	Core Tarps
Size (finished)	12 x 20 ft
Thickness	20 mil (approximate)
Material	100% virgin polyethylene
Grommet spacing	Every 18 in
Weave count	16 x 16
Color	Brown/Black

Our Verdict

The Core Tarps 12 x 20 Brown/Black 20 Mil tarp is a practical choice for anyone who needs a durable, weatherproof cover at a sensible price. Its reinforced edges, full finished sizing and virgin polyethylene construction make it good value for roof work, patios, boats and general outdoor protection, while heavier users should take care with fastening to avoid concentrated stress points.

Frequently Asked Questions

Is this tarp fully waterproof?
Yes. The tarp is designed to be waterproof and weatherproof and will shed rain and snow when properly installed.

Are the dimensions the exact usable size?
Yes. Core Tarps provides finished size dimensions so the 12 x 20 listing reflects the actual size of the tarp you receive.

Can it handle sun exposure long term?
The tarp is UV resistant and formulated for extended outdoor exposure, though prolonged high-UV environments may still eventually degrade any polyethylene product.