Better Blue Poly Tarp 40ft x 40ft - Heavy Duty Multipurpose Cover

In this review of the Better Blue Poly Tarp 40' x 40' the verdict is straightforward: this tarp is best for homeowners and jobsite crews who need a large, lightweight, water-resistant cover at an affordable price. The single biggest reason to buy is its combination of a true finished size and practical reinforcements - sewn poly rope in the hem and aluminum grommets - which make it easy to secure over large items like wood piles, grills, and outdoor furniture while keeping them dry during rain or snow.

Key Features

• 5 mil polyethylene: Provides a lightweight, waterproof barrier that works for temporary protection against rain and snow.
• True finished size: The tarp runs to its stated 40' x 40' dimensions so you can plan coverage without guessing allowances.
• Sewn poly rope hem: Reinforced edges resist tearing when the tarp is tied down and distribute tension across the border.
• Aluminum grommets: Preinstalled grommets make securing the tarp simple and reduce the chance of ripping at attachment points.
• UV treated and shrink-proof: Added resistance to sun damage and shrinkage helps the tarp hold up outdoors over a season of use.

Who It's For

This tarp is ideal for homeowners covering large items such as stacked firewood, patio furniture, small boats or a grill, and for contractors needing a lightweight protective sheet for short-term site coverage. Its large, true-to-size dimensions appeal to anyone who needs predictable coverage without buying multiple smaller tarps.

Those who need an all-season, long-term roofing or permanent protective solution should look elsewhere; users seeking maximum rip resistance or thicker industrial tarps may prefer heavier materials. The 5 mil thickness is best for temporary or occasional outdoor protection rather than continuous heavy-duty use.

Pros & Cons

Pros

• Large, accurate 40' x 40' size covers big loads without seams.
• Waterproof 5 mil polyethylene keeps belongings dry during storms.
• Reinforced hem with poly rope and aluminum grommets simplifies secure tie-downs.

Cons

• Material can be prone to tearing and shows inconsistent thickness in some areas, so not ideal for extreme, long-term abuse.

Specifications

Material	Polyethylene
Thickness	5 mil
Finished size	40' x 40'
Edge reinforcement	Poly rope sewn into hem
Grommets	Aluminum
Resistances	UV treated, shrink-proof, waterproof

Our Verdict

The Better Blue Poly Tarp 40' x 40' is a sensible choice for buyers who need affordable, large-scale, temporary protection with useful reinforcements and reliable finished dimensions. It delivers good water resistance and easy tie-down options, but those who require superior tear resistance or a heavier, long-term tarp should consider thicker construction instead.

Frequently Asked Questions

Is the tarp waterproof?
Yes, the 5 mil polyethylene is waterproof and designed to keep items dry during rain and snow.

Will the tarp tear easily?
The hem and sewn poly rope improve strength, but customers report occasional tearing and inconsistent thickness, so use care when fastening and handling.

Does the tarp match the stated size?
Yes, this premium tarp runs true to its finished 40' x 40' size so it covers large items without unexpected shortfall.