Better Blue Poly Tarp 40ft x 50ft - Heavy Cover Protection
Better Blue Poly Tarp 40ft x 50ft - Heavy Cover Protection
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In this review of the Better Blue Poly Tarp 40' x 50' the bottom line is straightforward: this is a functional, lightweight polyethylene cover best suited for short-term outdoor protection where waterproofing and size matter most. The tarp's single biggest reason to buy is its large finished size combined with a 5 mil thickness that keeps gear and materials dry in rain or snow. It is a practical choice for homeowners and job sites that need an inexpensive, true-to-size tarp for covering equipment, wood piles or patio furniture.
Key Features
- 5 mil polyethylene: Provides a waterproof barrier that helps keep items dry during heavy rain and snow storms.
- Large finished size: The 40' x 50' dimensions run true to size so you can plan coverage for cars, boats or machinery without guessing.
- Poly rope reinforced hem: A sewn poly rope in the hem adds support and reduces tearing at the edges for heavier loads.
- Aluminum grommets: Corrosion-resistant grommets let you secure the tarp quickly to frames, roofs or tie-down points.
- UV treated and shrink-proof: Sun protection and shrink resistance help the material retain shape and function outdoors.
Who It's For
The Better Blue Poly Tarp is aimed at homeowners, contractors and hobbyists who need a very large, mostly waterproof cover for temporary protection of items like furniture, grills, wood piles, motorcycles and construction materials. Its low weight makes it easy for two people to handle when draping over large objects.
Those who need long-term, heavy-duty tear resistance or perfectly consistent thickness for repeated commercial use should look at heavier woven or reinforced tarps; customers who need an industrial-grade rip-proof solution may find the 5 mil polyethylene less robust over many seasons.
Pros & Cons
Pros
- Excellent waterproof protection for short-term outdoor coverage and storm defense.
- Very large, true-to-size finished dimensions simplify planning and reduce overlap needs.
- Reinforced hem and aluminum grommets make securing the tarp straightforward and more durable than an unreinforced sheet.
Cons
- Material can be prone to tearing and shows inconsistent thickness in some areas, so it may not hold up to heavy abrasion or long-term heavy use.
Specifications
| Material | Polyethylene |
| Thickness | 5 mil |
| Finished size | 40' x 50' |
| Edge reinforcement | Poly rope sewn into hem |
| Grommets | Aluminum |
| Weather resistances | Waterproof, UV treated, shrink-proof |
Our Verdict
The Better Blue Poly Tarp 40' x 50' is a sensible value choice for anyone needing very large, waterproof temporary coverage. It performs well for protecting items through storms and is easy to secure, but buyers should expect thinner sections and some risk of tearing over heavy or repeated use. For occasional outdoor protection and size flexibility it represents good utility for the price.
Frequently Asked Questions
Is this tarp fully waterproof?
Yes; the 5 mil polyethylene material is waterproof and suitable for keeping items dry in rain and snow.
Will the grommets rust outdoors?
No; the tarp uses aluminum grommets which resist corrosion for outdoor use.
Is this tarp suitable for long-term heavy-duty use?
It is better for short-term or occasional heavy coverage; customers report some tearing and uneven thickness with heavy, long-term use.
Editor's Take
The Better Blue Poly Tarp 40' x 50' is a large, waterproof 5 mil polyethylene cover that provides strong short-term protection and easy securing, but it may tear and show inconsistent thickness under heavy or long-term use.

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