Large Waterproof Tarp 20ft x 20ft - Heavy Duty 5 Mil Protection

In this review the Large Waterproof Tarp 20' x 20' is evaluated for homeowners, campers and small-business users who need a roomy, rugged cover. The bottom line: this tarp stands out for its combination of extra thick waterproof material and easy manoeuvrability, making it useful for covering equipment, boats or a canopy tent. It is a practical, no-frills protective sheet that delivers reliable weather resistance and well-placed grommets for basic tie-downs.

Key Features

• Extra thick construction: The 5 mil material provides noticeable resistance to punctures and is thicker than thin utility sheets, helping protect items from wind and debris.
• Waterproof and UV resistant: The tarp keeps rain and snow off stored goods and tents while the UV protection helps reduce sun degradation over time.
• Mildew- and tear-resistant finish: The treated surface helps prevent mildew growth and resists small tears during routine handling.
• Reinforced hem with rope: A rope in the hem strengthens edges against ripping and helps maintain shape when tied down.
• Rust-proof grommets every 36in: Grommets positioned at regular intervals make it straightforward to secure the tarp around irregular loads or frames.
• Lightweight for size: Despite its heavy duty intent, the tarp remains light enough for two people to position over a 20ft by 20ft area without special tools.

Who It's For

The tarp is ideal for homeowners covering woodpiles, grills, patio furniture or a pool during the off-season, and for recreational users who need a ground sheet or shelter for camping and canopy tents. Small businesses and hobbyists who require a simple, large cover for equipment or stored goods will also find it useful.

This tarp is not intended for professional, long-term industrial use where reinforced multi-layer fabrics or heavy canvas are required; those needing extreme abrasion resistance or permanent outdoor installations should consider heavier commercial tarps or custom covers.

Pros & Cons

Pros

• Good all-weather protection thanks to the waterproof and UV-treated material.
• Convenient grommet spacing and a rope-reinforced hem make securing the tarp straightforward.
• Large 20ft by 20ft size covers boats, canopy frames and larger equipment without piecing multiple tarps together.
• Light enough for easy handling by two people despite the thicker film.

Cons

• Some users report mixed feedback on long-term durability; occasional ripping has been mentioned under heavy strain.
• The 5 mil thickness, while thicker than lightweight tarps, is not as heavy as industrial multi-ply canvas for permanent installations.

Specifications

Size	20 ft x 20 ft
Thickness	5 mil
Material properties	Waterproof, UV resistant, mildew-proof, tear-resistant
Edge reinforcement	Rope in hem for enhanced rip resistance
Grommet spacing	Every 36 in, rust-proof
Intended use	Indoor and outdoor protective cover for equipment, boats, RVs, pools

Our Verdict

The Large Waterproof Tarp 20' x 20' is a solid, budget-friendly choice for homeowners and recreational users who need a large, waterproof protective tarp for seasonal or occasional use. It balances thickness and manageability well and is good value for covering boats, canopy tents and stored goods, though those needing permanent heavy industrial protection should choose a heavier duty option.

Frequently Asked Questions

Is this tarp suitable for covering a boat?
Yes, the 20ft by 20ft size and waterproof, UV-resistant material make it suitable for covering many small to mid-size boats.

How often are the grommets placed?
Grommets are placed every 36 in along the hem and are rust-proof for outdoor use.

Can it be used as a camping ground sheet or canopy cover?
Yes, the tarp is versatile enough to serve as a ground sheet or canopy tent cover and is light enough to handle for these purposes.