20ft x 40ft Super Heavy Duty 16 Mil Brown Poly Tarp Cover - Thick

Bottom line: In this review the 20' x 40' Super Heavy Duty 16 Mil Brown Poly Tarp stands out as a good choice for homeowners, contractors, and outdoor event planners who need a thick, weatherproof covering that holds up under regular use. Its single biggest reason to buy is the material heft - a true 16 mil thickness with an 8 oz per square yard weight and a 16 x 16 weave that gives the tarp noticeable resistance to wind and water compared with thinner options. It is a utility-focused product meant to protect equipment, supplies, and temporary structures rather than provide a decorative solution.

Key Features

• Extra thick construction: The 16 mil thickness and 8 oz per square yard weight provide strong tear resistance and a durable feel for repeated outdoor use.
• All weather protection: UV resistant and waterproof material keeps covered items dry and reduces sun damage during prolonged outdoor exposure.
• Reinforced edges and grommets: Metal grommets spaced every 18 in and reinforced edges make it simple to secure the tarp against wind and shifting loads.
• Multipurpose use: Large 20' x 40' size accommodates vehicle covers, building materials, drop cloths for painting, or temporary shelter construction.
• Polyethylene material: The polyethylene build is made to last longer than thin plastic tarps and resist common wear in jobsite and storage situations.

Who It's For

This tarp is best for homeowners who need a heavy-duty cover for seasonal storage, contractors who want to protect lumber and equipment on jobsites, and event teams building temporary shelters where a waterproof, UV-resistant cover is required. Its weight and size make it practical for larger tasks where one large sheet is preferable to multiple small tarps.

Those seeking a lightweight, highly packable tarp for ultralight camping or a decorative canopy should look elsewhere; the 16 mil thickness and reinforced edges add weight that makes it less suited to minimalist backpacking or fine aesthetic uses.

Pros & Cons

Pros

• Thick 16 mil material and heavy 8 oz per square yard weight deliver solid durability for outdoor use.
• Waterproof and UV resistant properties protect items from rain and sun damage.
• Metal grommets every 18 in and reinforced edges make tie-downs reliable and straightforward.
• Large 20' x 40' coverage reduces seams when protecting big loads or creating shelters.

Cons

• Heavier and less packable than thin tarps, so it is not ideal for ultralight camping or carrying long distances.
• Some users report mixed longevity; while many find it lasts longer than thin tarps, others have experienced tearing under extreme stress.

Specifications

Our Verdict

The 20' x 40' 16 mil brown poly tarp is a practical, value-oriented choice for protecting large items and creating temporary covers where durability and weather resistance matter. Buyers who need a robust, waterproof tarp that ties down easily will find good use from this product; those needing light, compact tarps for backpacking should consider lighter alternatives.

Frequently Asked Questions

Is this tarp waterproof?
Yes, the polyethylene material is waterproof and designed to keep covered items dry in rain and snow.

How are the grommets arranged?
Metal grommets are spaced every 18 in and located at each corner for secure tie-downs and anchoring.

Will this tarp resist UV damage?
It is UV resistant to reduce sun degradation, making it suitable for extended outdoor exposure.