Black Tarps Heavy Duty Waterproof 16x20 - 12 Mil Thick Protective Tarp

In this review the Black Tarps Heavy Duty Waterproof 16x20 is evaluated for outdoor cover and shelter use; its biggest selling point is the robust 12 mil thickness combined with heat sealed seams and anti-rust grommets, which make it a sensible choice for users who need a heavy-duty waterproof cover. The review focuses on durability, multipurpose use, and real customer feedback so buyers can judge whether this tarp will protect equipment, provide emergency shelter, or serve as a seasonal cover.

Key Features

• 12 mil thickness: Provides a strong barrier against punctures and heavy rain for longer lasting outdoor protection.
• 100% virgin polyethylene: Ensures the fabric resists tearing and avoids the unpleasant chemical smell common in lower quality tarps.
• Heat sealed seams: Keeps seams watertight so the tarp stands up to storms and heavy moisture without leaking.
• Anti-rust grommets every 20 in: Allow secure tie-downs at regular intervals, improving anchoring for wind resistance and load distribution.
• All-weather protection: UV resistance plus waterproof material helps maintain integrity through sun, rain, and seasonal changes.

Who It's For

This tarp is ideal for homeowners, campers, and DIYers who need a heavy, reusable cover for boats, cars, outdoor furniture, sheds, or makeshift shelters. The 16x20 size and substantial weight make it useful for medium to large projects where durability matters more than lightweight portability.

Those who need an exact measurement guarantee for precision projects or expect a lightweight, backpack-friendly shelter should consider lighter or more specialized covers instead, since some customers noted size expectations and occasional issues around grommet stress under extreme loads.

Pros & Cons

Pros

• Thick 12 mil construction translates to perceived quality and strong waterproofing in everyday use.
• 100% virgin polyethylene feels more durable and typically lacks strong manufacturing odors.
• Heat sealed seams and anti-rust grommets every 20 in provide reliable tie-down points and better seam waterproofing.
• Versatile for many outdoor tasks from covering equipment to emergency sheltering.

Cons

• Some customers reported grommets ripping out or seams failing under heavy strain, so reinforcement may be needed for extreme loads.
• Size perceptions vary among buyers, so measure needs carefully before purchase.

Specifications

Size	16 ft x 20 ft (nominal)
Thickness	12 mil
Material	100% virgin polyethylene
Weight	180 grams per square meter
Weave count	1414 weave
Grommet spacing	Every 20 in with anti-rust grommets
Seams	Heat sealed seams

Our Verdict

The 16x20 Black heavy duty tarp is a solid value for people who want a rugged, waterproof cover that resists tears and sunlight over multiple seasons. It performs well for general outdoor protection and emergency sheltering, though users with very heavy or concentrated loads should reinforce tie points to avoid grommet or seam stress.

Frequently Asked Questions

Is this tarp waterproof?
Yes, the polyethylene material with heat sealed seams provides waterproof protection suitable for sheds, furniture, and boats.

How durable are the tie-downs?
Grommets are anti-rust and spaced every 20 in, but customers advise reinforcing tie points if loading is heavy to prevent tearing.

Does it have a strong manufacturing smell?
No, the tarp uses virgin polyethylene and is noted for not having an unpleasant odor common to cheaper alternatives.