Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover 16 x 20 - Waterproof

In this review of the Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover, the bottom line is simple: this is a heavy, dependable poly tarpaulin for anyone who needs a rugged, weatherproof cover without surprises in finished size. The reviewer found it most valuable for protecting roofs, boats, patio furniture and work areas because Core Tarps uses 100% virgin polyethylene and ships the stated finished dimensions, so you get the full 16 x 20 coverage expected. Build quality and thickness are the standout reasons to consider this tarp.

Key Features

• Finished Size: The tarp is sold at its finished 16 x 20 size so buyers receive full coverage without the common shortfalls some other suppliers deliver.
• 100% Virgin Polyethylene: Constructed from non-recycled polyethylene for improved tear resistance and longer life compared with mixed-material tarps.
• Reinforced Edges: The edge reinforcement helps prevent fraying and concentrates strength where tie-downs are attached.
• Strong Grommets: Metal grommets placed every 18 in allow secure attachment with rope or bungee cords for reliable anchoring in wind and weather.
• Weatherproof Performance: The tarp is waterproof, UV resistant and intended for year-round outdoor use in sun, rain and snow.
• Multipurpose Design: Sized and built to cover roofs, pools, boats, furniture, or be repurposed for camping shelters and drop cloths.

Who It's For

The Core Tarps 20 mil cover is best for homeowners, contractors and outdoor enthusiasts who need a durable, heavyweight tarp that will hold up as a temporary roof patch, boat cover, or protective sheet for outdoor furniture. It suits users who value accurate finished dimensions and who want a tarp made from pure virgin polyethylene for improved longevity.

People who need a lightweight, packable tarp for backpacking or ultralight camping should look elsewhere; this product's weight and heavy construction make it less suitable for minimalist gear. Also, those requiring specialty coatings or fire resistance beyond the standard waterproof and UV protection should confirm suitability for their exact use case before purchase.

Pros & Cons

Pros

• Very durable feel and weight due to 100% virgin polyethylene construction.
• Accurate finished size delivery means predictable coverage for projects and covers.
• Reinforced edges and metal grommets every 18 in make tie-downs straightforward and secure.
• Effective waterproofing and UV resistance for year-round outdoor protection.

Cons

• Some users report edges or sections that can tear under exceptional stress, so additional reinforcement may be wise for long-term heavy-duty use.
• The tarp is relatively heavy and not ideal for lightweight backpacking or compact storage needs.

Specifications

Brand	Core Tarps
Finished Size	16 x 20 ft
Material	100% virgin polyethylene
Thickness	20 mil (nominal, may vary slightly)
Weave Count	16 x 16
Grommet Spacing	Every 18 in with metal grommets
Performance	Waterproof, UV resistant, weatherproof

Our Verdict

The Core Tarps Extreme 20 mil 16 x 20 tarp is a solid, value-minded choice for anyone needing a heavy-duty, weatherproof cover with true finished dimensions and a durable virgin polyethylene build. It performs well for roofing protection, boat and furniture covers, and general outdoor shielding; just be aware it is heavy and may require extra reinforcement in the highest-stress tie-down situations.

Frequently Asked Questions

Does the tarp come in the exact 16 x 20 size?
Yes, Core Tarps sells this item as a finished 16 x 20 ft size so you receive the full dimensions without the usual shortfall.

Is the material suitable for year-round outdoor use?
Yes, the tarp is waterproof, UV resistant and weatherproof for use in sun, rain and snow.

Can I tie it down directly through the grommets?
Yes, metal grommets every 18 in are provided for secure tie-downs with rope or bungee cords, though extra reinforcement is recommended for extreme loads.