CARTMAN 12x30 ft 20 Mil Extra Thick Poly Tarp - Ultra Heavy Duty

Our review of the CARTMAN 12x30 ft 20 Mil tarp finds it well suited for homeowners and tradespeople who need a heavy, weatherproof cover that holds up under routine outdoor use. The single biggest reason to consider this tarp is its extra thick 20 mil construction using 100% virgin polyethylene, which delivers a noticeably sturdy feel and resistance to tearing compared with thinner alternatives. It is a practical, no-nonsense protective cover for projects where durability and waterproofing matter more than lightweight packability.

Key Features

• Finished Size: The marked size is the exact finished size so you get a true 12 ft by 30 ft cover without guessing allowances.
• 100% Virgin Polyethylene: Made from non-recycled material which helps keep the sheet stiff and resistant to rot compared with lower grade tarps.
• Extra Thick 20 Mil Construction: The heavy 20 mil thickness and 260 GSM density make the tarp feel substantial and better able to resist punctures and wear.
• UV Resistant and Waterproof: Designed to stand up to rain, wind, snow and sun, the fabric helps protect items from weather exposure.
• Reinforced Edges: Reinforced hems help the tarp maintain shape under tension and reduce the chance of edge tearing when tied down.
• Multipurpose Use: Works for covering vehicles, wood piles, outdoor furniture, roofs and as a camping or jobsite ground cover for flexible protection.

Who It's For

This tarp is a good fit for homeowners, landscapers and contractors who need a robust, waterproof cover for medium to large items - think carports, wood or equipment protection, and temporary roof patches. The weight and thickness mean it will perform better than thin poly tarps for seasonal storage and jobsite use.

People who need an ultra-light, packable tarp for backpacking or long-term UV-constant installations should look elsewhere; this model favors durability and protection over minimal weight or extreme longevity in constant intense sun without maintenance.

Pros & Cons

Pros

• Thick 20 mil construction feels durable and resists punctures better than thin tarps.
• 100% virgin polyethylene provides sturdiness and reduced tendency to rot compared with recycled blends.
• True finished size eliminates surprises when measuring for coverage.
• Waterproof and UV resistant features make it versatile for weather protection.

Cons

• Some users report mixed durability over many months, so heavy continuous exposure may still cause wear.
• Heavier weight reduces portability for camping or backpacking where a lighter tarp would be preferable.

Specifications

Brand	CARTMAN
Finished Size	12 ft x 30 ft
Material	100% virgin polyethylene
Thickness / Density	20 mil / 260 GSM
Weave Count	16 x 16
Key Properties	UV resistant, waterproof, reinforced edges

Our Verdict

The CARTMAN 12x30 ft 20 Mil tarp is a strong value for anyone who needs a heavy, waterproof protective cover that delivers reliable short- to medium-term performance. Its 100% virgin polyethylene and reinforced edges make it a practical choice for covering vehicles, wood stacks, or outdoor equipment, though those needing extreme long-term UV endurance or extreme portability should consider other options.

Frequently Asked Questions

Is the size listed the actual size?
Yes, the product lists the finished size so the tarp measures the stated 12 ft by 30 ft without extra overlap missing from measurements.

Will this tarp withstand heavy rain and wind?
It is waterproof and UV resistant and holds up well in rain and wind, but prolonged severe exposure can eventually degrade any tarp, so secure and check it periodically.

Is this tarp made from recycled material?
No, it is made from 100% virgin polyethylene which is intended to improve durability and reduce rot compared with recycled blends.