20 ft x 24 ft Brown/Black 20 Mil Heavy Duty Tarp Cover - Waterproof

In this review of the 20 ft x 24 ft Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover, the bottom line is straightforward: this tarp is for anyone who needs a large, weatherproof protective sheet that feels noticeably thicker and more substantial than typical bargain tarps. Our review found the finished-size claim and the use of 100% virgin polyethylene to be the biggest reasons to consider it, since buyers get the full advertised dimensions and a material build intended to resist rot, UV and prolonged exposure to the elements.

Key Features

• Finished size: The tarp is sold at its full measured dimensions so buyers receive the full 20 ft by 24 ft coverage without missing inches on the edges.
• 100% virgin polyethylene: The pure polyethylene construction delivers a heavier feel and improved tear resistance compared with mixed or recycled blends.
• Reinforced edges: Sewn and reinforced edges help prevent fraying and extend usable life when tied down or lashed over structures.
• Metal grommets every 18 in: Strong grommets at regular intervals make securing the tarp straightforward with rope or bungees for a snug fit.
• Weatherproof performance: The 20 mil thickness is designed to be waterproof and UV resistant so it can be used year round in rain, sun and snow.
• Multipurpose design: Large size and durability let it serve as a roof patch, boat or patio cover, camping groundsheet or paint drop cloth.

Who It's For

This tarp suits homeowners, contractors, and outdoor enthusiasts who need a large protective cover that will hold up under regular outdoor exposure. It is particularly useful for covering roofs, boats, patio furniture and pools where full coverage and durability matter.

It may be less appropriate for buyers who need a lightweight, ultra-compact tarp for backpacking or ultralight camping, since the heavier 20 mil construction adds weight and bulk for storage and transport.

Pros & Cons

Pros

• High perceived quality from 100% virgin polyethylene and a 16 x 16 weave count that feels durable.
• Finished size gives confidence buyers get the advertised 20 ft x 24 ft coverage without surprises.
• Reinforced edges and metal grommets every 18 in make tying down easy and reliable.
• Effective waterproofing and UV resistance for year-round outdoor protection.

Cons

• Some users report occasional tearing under extreme stress, so extremely abrasive or sharp-edge applications require extra care.
• The thicker 20 mil material increases weight and bulk compared with light-duty tarps, making it less ideal for packable uses.

Specifications

Brand	Core Tarps
Finished size	20 ft x 24 ft
Material	100% virgin polyethylene
Thickness	20 mil (heavy duty)
Weave count	16 x 16
Grommet spacing	Every 18 in
Features	Reinforced edges, UV resistant, waterproof

Our Verdict

The Core Tarps 20 ft x 24 ft 20 mil tarp is a very practical choice for anyone needing robust, full-size coverage that stands up to sun and rain. Its use of 100% virgin polyethylene and reinforced construction make it good value for yard work, temporary roof protection and general outdoor covers, though customers wanting the lightest possible tarp for packing should look elsewhere.

Frequently Asked Questions

Is this tarp fully waterproof?
Yes, the 20 mil polyethylene construction is waterproof and designed to shed rain when secured properly.

Does the listed size reflect the actual usable dimensions?
Yes, Core Tarps sells finished sizes so the 20 ft x 24 ft listing is the full usable dimension.

Are the grommets strong enough for long-term tie-down?
The tarp has metal grommets every 18 in and reinforced edges, which work well for regular tie-downs; heavy or abrasive anchor points may still require padding or extra reinforcement.