Keten Tarps Heavy Duty Waterproof 12x20 Feet (Extra Thick 16 Mil) — UV Blocking Outdoor Tarp with Reinforced Grommets
Product description
The essentials
If you’re shopping for an outdoor tarp that’s meant to handle real weather (not just a quick cover), Keten’s Heavy Duty Waterproof tarp is built around thickness and reinforcement. The pitch here is simple: extra-thick polyethylene, waterproofing, UV blocking, and reinforced grommets so you can lash it down more confidently.
On paper, it’s designed for long-term outdoor use—covering boats, cars, roof areas, pools, patio items, firewood, lumber, and even camping setups as a tent/tarp groundsheet. It’s not trying to be fancy, it’s trying to be dependable.
One quick note to keep expectations grounded: the listing emphasizes durability features, but it doesn’t spell out things like wind ratings or how it performs after long-term exposure in every climate. So it’s smart to think of it as a heavy-duty cover for typical outdoor scenarios, not as a substitute for professional roof work.
Where it shines in everyday use
The biggest selling point is thickness. This tarp is listed as up to 16 Mil, with a woven construction (15x17 weave mentioned in the description). In practical terms, thicker tarps generally feel less flimsy when you’re pulling them tight, and they’re often better suited to the “keep it up there for a while” mindset—like covering stored patio furniture through unpredictable seasons.
The coverage use cases are broad, which is helpful when you’re one of those people who needs a tarp for everything: - Securing belongings against moisture, dust, and sun damage - Covering outdoor furniture, lumber, and firewood - Using it around pools when you want a barrier layer - Covering a boat or car during downtime - Camping use as a groundsheet or canopy-style cover
For a quick micro-example: imagine you’ve got a couple bundles of firewood and some outdoor gear you want to keep dry. You spread the tarp, use the reinforced corners and grommets to tension it, and you can leave it outside longer than you would with a lighter tarp that feels like it might tear or flap.
Key takeaways (what to look for before buying)
This model includes reinforced grommets and corner reinforcement. The description mentions reinforced plastic edges at each corner to help prevent tearing, plus double hemmed and heat-sealed technology to help secure the material.
It also lists UV blocking and waterproof performance, with an “ideal option” positioning for a range of weather conditions—windy, raining, snowing, or sunny.
Before you buy, it helps to check how you plan to secure it. The grommets are spaced every 23 inches, so your tie-down setup (ropes, bungee cords, straps, or stakes) should match that spacing. If your current anchoring method relies on different spacing, you may find you need a few extra tie-down adjustments.
Tech specs
- Name: Keten Tarps Heavy Duty Waterproof 12x20 Feet (Extra Thick 16 Mil)
- Type: Outdoor tarp (waterproof, UV resistant/blocking)
- Size: 12x20 feet
- Thickness: up to 16 Mil
- Weave: 15 x 17 weave
- Grommet spacing: every 23 inches
- Material: premium polyethylene
- Color: Silver/Black
- Reinforcement details: reinforced plastic edges at each corner, double hemmed and heat sealed technology (as described)
Pros and limitations (realistic expectations)
What you’ll likely appreciate is the whole “heavy duty” focus: extra thickness, waterproof and UV-resistant/blocking positioning, and reinforcement at the corners and along the edges. If you’ve had thinner tarps that develop stress points near grommets or corners, this design is clearly aimed at that weak spot.
That said, there’s one limitation worth noting: durability claims are always context-dependent. Wind conditions, how tight you tension it, and how long it stays exposed will influence wear. If you’re expecting a tarp to survive extreme storms without any adjustment, you may feel let down. For most homeowners and seasonal storage needs, though, it lines up well with what people typically want from a heavy-duty outdoor cover.
Who it’s for (and who should skip it)
It makes sense if you want one tarp that can cover a lot of outdoor tasks—storage, seasonal protection, camping cover, and general weather barrier use. The reinforced grommets and corner reinforcement suggest it’s better suited to being tied down and tensioned repeatedly.
You may want to skip it if you only need a lightweight temporary cover for very short use, or if you’re looking for something ultra-flexible and easy to fold with minimal bulk. Extra thickness can mean a tarp that’s less “grab-and-go” than thinner options.
Should you buy it?
Buy it if you’re looking for a heavy-duty outdoor tarp with up to 16 Mil thickness, waterproofing, UV blocking, and reinforced grommets meant to support tying down for longer outdoor sessions. It’s especially sensible for protecting outdoor items like patio furniture, firewood, lumber, pool setups, or a boat/car cover when sun and moisture are part of the problem.
Don’t buy it if you need a very lightweight, packable tarp or if your situation requires specialized performance details (like specific wind ratings) that aren’t provided in the listing. In those cases, you’ll likely be happier with a more purpose-fitted product.
Mini FAQ
Will this tarp work for pool or patio coverage?
The listing directly mentions pool and patio use cases, including protecting items from sun damage and moisture.
Is it waterproof and UV resistant?
The description says it is waterproof and UV-resistant, and it calls out UV blocking as well.
How are the grommets spaced?
Grommets are spaced every 23 inches.
What colors is this tarp available in?
This specific listing is for Silver/Black.
Final thought before you commit
Double-check that the 12x20 feet size and the 23-inch grommet spacing match how you plan to secure it. If those fit your setup, the heavy-duty build is the core reason this one is worth considering.