12ft x 20ft Super Heavy Duty 16 Mil Brown Poly Tarp Cover - Thick

In this review of the 12' x 20' Super Heavy Duty 16 Mil Brown Poly Tarp Cover, the bottom line is simple: this tarp is for anyone who needs a visibly robust, weatherproof protective sheet that can be tied down and left outdoors without worry. The single biggest reason to buy is its heavy 16 mil thickness combined with an 8 oz per square yard weight, which gives it a noticeably tougher feel than typical thin tarps. For homeowners, contractors, and backyard DIYers who want durable protection from rain, sun and wind, this tarp delivers reliable coverage without fuss.

Key Features

• 16 mil thickness: The extra thick material provides added puncture and tear resistance compared with lighter tarps, so it stands up better to rough use.
• 8 oz per square yard weight: The heavier fabric feels substantial and helps the tarp lie flat and resist flapping in wind.
• 16 x 16 weave count: A denser weave improves overall strength and makes the sheet less prone to stretching or wearing thin at stress points.
• Metal grommets every 18 in: Reinforced grommets at regular intervals and in the corners make it straightforward to secure the tarp with rope or bungee cords.
• UV resistant and waterproof: Treated polyethylene sheds water and helps reduce UV degradation so the tarp can be used outdoors season after season.
• Reinforced edges: Finished, reinforced hems reduce fraying and help maintain durability where most tarps fail first.

Who It's For

This tarp is well suited to homeowners covering firewood, lawn equipment, or cars in driveways, contractors protecting building materials on site, and event operators who need a heavy drop sheet or temporary shelter. Its weight and thickness make it a practical choice for long-term outdoor use where exposure to wind and sun is expected.

Those who need an ultra-lightweight tarp for backpacking, fine canvas aesthetics, or a perfect long-term replacement for high-end canvas roofs may want to consider other materials; this product prioritizes toughness and weather resistance over light packability or traditional canvas appearance.

Pros & Cons

Pros

• Very durable feel from the 16 mil thickness and 8 oz weight, resisting holes and abrasions in everyday use.
• Practical tie-down spacing with metal grommets every 18 in makes securing large covers easy.
• Weatherproof and UV resistant treatment helps prevent water penetration and sun damage outdoors.

Cons

• Some customers report occasional tearing under extreme stress, so it is not indestructible against sharp edges or sustained heavy abrasion.
• At this weight, it is bulkier and heavier to move than thin tarps, which can be inconvenient for solo handling.

Specifications

Finished size	12 ft x 20 ft
Material	Polyethylene
Thickness	16 mil
Weight	8 oz per square yard
Weave count	16 x 16
Grommet spacing	Every 18 in and at each corner

Our Verdict

The 12' x 20' 16 mil brown poly tarp is a practical, heavy-duty cover that offers strong weather protection and easy tie-down options, making it a good value for homeowners and site workers who need reliable outdoor coverage. Its thicker construction and reinforced edges mean fewer replacements over time, though users should still avoid sharp contact that can penetrate even heavy polyethylene.

Frequently Asked Questions

Is this tarp waterproof?
Yes. The polyethylene material is waterproof and weatherproof, designed to shed rain and protect items underneath.

How often are the grommets spaced?
Grommets are metal and spaced every 18 in, with additional grommets at each corner for secure tie-down.

Will it resist UV fading and breakdown?
It is UV resistant and treated to reduce sun damage, which helps extend useful outdoor life compared with untreated plastic tarps.