Tarps Direct
Tarps Direct Harpster Tarps 7' x 20' Silver 6.0 oz 11-12 Mil Poly Tarp
Heavy-duty silver polyethylene tarp, 7 by 20 feet, 11-12 mil thick with UV-treated waterproof fabric and rustproof aluminium grommets every 18 inches
- TypeTarps
- FeaturesHEAVY DUTY: Tarp is 11-12 Mil thick, Fabric weighs 6 oz. per
- 11-12 Mil thickness handles heavy loads
- 0 oz fabric resists tears and abrasion
- UV-treated polyethylene blocks 100 percent of sun rays
- Rustproof aluminum grommets every 18 inches secure tie-downs
- Waterproof and mildew resistant for all-weather protection
Heavy-Duty Silver Poly Tarp
This 7 by 20 foot silver tarp is built from 6.0-ounce UV-treated polyethylene rated at 11-12 mil thickness. It is waterproof, mildew, acid and tear resistant for reliable outdoor coverage. The material blocks 100 percent of sun rays to keep covered items cooler. Rustproof aluminum grommets spaced every 18 inches provide secure tie-down points.
Upgrade from Lightweight Covers
It replaces thin blue tarps that tear quickly and let sunlight through when you need durable, long-term protection. The jump is worth it for seasonal storage of vehicles, boats or firewood where UV damage and water ingress are concerns. It also suits builders and campers who need a cover that survives repeated setup and takedown. Buyers who only need a quick dust sheet for indoor painting will find this weight unnecessary.
Cut-Size and Grommet Limits
The tarp is cut size so it will measure approximately 6 inches or 3-5 percent shorter than the nominal 7 by 20 foot dimensions. Grommets are placed roughly every 18 inches along the edges and at the corners only. Tie-down spacing is therefore fixed and cannot be adjusted for custom anchor points. No reinforced corners or additional tie-down loops are included beyond the standard grommet pattern.
Highlights
- 11-12 Mil thickness handles heavy loads
- 0 oz fabric resists tears and abrasion
- UV-treated polyethylene blocks 100 percent of sun rays
- Rustproof aluminum grommets every 18 inches secure tie-downs
- Waterproof and mildew resistant for all-weather protection
Specifications
| Brand | Harpster Tarps by Tarps Direct |
|---|---|
| Type | Tarps |
| Features | HEAVY DUTY: Tarp is 11-12 Mil thick, Fabric weighs 6 oz. per square yard||UV treated Polyethylene, Waterproof, Mildew, Acid and Tear resistant. Great for use in direct sunlight, rain, snow and more||Rustproof aluminum grommets approximately every 18 inches and at the corners||SUNBLOCK: This tarp blocks 100 percent of the sun rays. Great for providing shade on decks, patios and more.||Cut Size – Will Measure 6” or 3-5% Shorter |
Questions about this item
How far apart are the grommets on this 7' x 20' tarp?
The rustproof aluminium grommets are spaced approximately every 18 inches along the edges and at each corner, giving you multiple tie-down points for secure coverage.
What is the correct way to secure this tarp so it does not tear at the grommets?
Thread rope or bungee cords through every grommet — spaced roughly 18 inches apart — and tension evenly across the 11-12 Mil polyethylene; skipping grommets concentrates wind load and causes tears.
How long will the UV protection last before the tarp needs replacing?
The silver 6.0 oz polyethylene blocks 100 percent of sun rays when new; UV resistance degrades with continuous exposure, so plan to replace the tarp once the coating chalks or the fabric becomes brittle.
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