Ultra Heavy Duty Tarp Waterproof Large Cover 20ft x 30ft - Thick 16

Our review of this Ultra Heavy Duty tarp finds it best suited for homeowners, contractors and campers who need a dependable, no-nonsense cover that stands up to rain, sun and wind. The single biggest reason to buy is its extra-thick 16 mil construction, which delivers obvious strength and water resistance compared with thin tarps; this makes it a practical choice for covering boats, RVs, lumber or creating a temporary roof patch. The writing stays practical and measured: it is straightforward, heavy, and built with function rather than frills in mind.

Key Features

• 16 mil thick material: The heavy 16 mil construction provides increased puncture resistance and longer service life under rough outdoor use.
• Waterproof and UV resistant: Treated layers keep rain and sun off covered items so the tarp works well for year-round outdoor protection.
• Grommets every 18 in: Evenly spaced tie points and corner grommets make securing the tarp simple and adaptable to canopies, trucks or scaffolding.
• Reinforced laminated backing: A high density woven upper layer with a low-density laminated backing adds flexibility while maintaining tear resistance.
• Large 20' x 30' size: Generous dimensions cover boats, pools, vehicles or provide a ground or drop sheet for large projects.
• All-weather use: Built to handle rain, snow and wind so it can be relied on through seasonal storms and outdoor jobs.

Who It's For

This tarp is aimed at people who need a rugged, multipurpose cover: contractors who want a durable jobsite tarp, homeowners looking for an emergency roof or porch cover, and outdoors people who need a strong shelter for camping or to protect gear. Its heavy build suits repeated use and exposure to wind and weather.

Those who should look elsewhere include buyers seeking a lightweight, ultra-portable tarp for occasional picnic use or those who require custom-fitted covers with sewn seams and specialized fastening systems; this product favors durability over compactness.

Pros & Cons

Pros

• High durability from 16 mil thickness makes it resistant to tearing and prolonged exposure.
• Effective waterproofing and UV treatment protect items from rain and sun damage.
• Grommets spaced every 18 in simplify tie-downs and secure installations.
• Large coverage area is useful for boats, vehicles, building materials or creating a temporary shelter.

Cons

• Its extra-thick, heavy construction makes it less compact and heavier to handle than thin tarps.

Specifications

Material thickness	16 mil
Color	Hunter green
Size	20' x 30'
Grommet spacing	Every 18 in and at each corner
Finish	Waterproof and UV treated
Construction	High density woven upper layer with reinforced laminate backing

Our Verdict

For anyone needing a reliable, heavy-duty tarp for repeated outdoor use, this 20' x 30' 16 mil cover is a sensible and cost-effective choice. It offers clear advantages in strength, weather protection and secure tie-down options, making it a practical buy for jobsite work, vehicle and boat coverage, and emergency shelter needs.

Frequently Asked Questions

Is this tarp suitable for long-term outdoor use?
Yes. The tarp is UV treated and waterproof with reinforced backing, so it is designed to withstand prolonged exposure to sun and weather.

How are tie-downs handled?
Grommets are placed every 18 in and at each corner to allow easy securing with rope, bungee or straps.

Can it be used as a temporary roof patch?
Yes. Its heavy 16 mil construction and waterproof finish make it suitable for emergency temporary roof patches or covering building materials.