RAINDEWAY 12 Mil Heavy Duty White Tarp 10x20 ft - Thick UV Resistant

In this review the RAINDEWAY 12 Mil Heavy Duty White Tarp is presented as a practical, no-frills weather cover for homeowners and outdoor gear owners who need a tough, simple solution. The single biggest reason to buy is its extra-thick 12 mil construction and reinforced edges, which deliver a substantial feeling of durability and resistance to tearing that suits repeated outdoor use. The tarp's heavyweight polyethylene weave and metal grommets make it a straightforward choice when strength and longevity matter more than decorative features.

Key Features

• 12 Mil thickness: The extra-thick material provides a heavier, more tear-resistant cover compared with thin garden tarps, so it holds up under repeated handling.
• 6 oz per sq yard: The dense fabric weight contributes to durability and a solid feel that resists punctures and abrasions during normal outdoor use.
• 14 x 14 weave count: The tightly woven polyethylene fibers reduce stretching and help the tarp shed water and wind rather than tearing apart.
• UV resistant: The white surface is treated to resist sun damage so the tarp maintains strength and color longer when used as a shade sail or cover.
• Metal grommets and reinforced edges: Grommets spaced about 17.7 in apart and strengthened hems make it easy to secure the tarp and reduce edge fraying under tension.
• Full finished size: The tarp arrives at its usable 10x20 ft finished dimensions, avoiding surprises about undersized covers.

Who It's For

The tarp is best for homeowners, campers, and DIYers who need a dependable, heavy-duty cover for patios, campers, outdoor furniture, or construction materials. It's especially useful when strength and UV resistance are priorities and when the tarp will be tied down frequently or exposed to wind.

Those who need a perfectly sealed, guaranteed waterproof membrane for sensitive equipment or who require a precise custom-fit should consider a tailored cover or a specialist waterproof shelter; a heavy polyethylene tarp offers strong protection but some users have reported mixed waterproof results in prolonged submersion or seam-exposed situations.

Pros & Cons

Pros

• Thick 12 mil, 6 oz/sq yd construction provides strong resistance to rips and tears.
• Reinforced edges and evenly spaced metal grommets make securing the tarp straightforward and durable.
• UV resistant finish helps protect items and prolong tarp life in sun-exposed locations.
• Full finished size means buyers receive a usable 10x20 ft cover without shrinkage surprises.

Cons

• Some users report mixed waterproof performance in extreme or prolonged wet conditions, so it may not replace a sealed shelter for highly sensitive gear.
• The tarp can be slightly larger than expected for some uses, requiring extra care when fitting as a shade sail.

Specifications

Brand	RAINDEWAY
Thickness	12 Mil
Weight	About 6 oz per sq yard
Weave	14 x 14 polyethylene fibers
Finished size	10 x 20 ft
Grommet spacing	Approximately 17.7 in
Features	UV resistant, reinforced edges, metal grommets

Our Verdict

The RAINDEWAY 12 Mil Heavy Duty White Tarp is a practical value pick for users who need a thick, tear-resistant cover with good UV protection and solid grommeted edges. It is well suited to general outdoor covers, shade sails, and protecting gear from routine weather; those needing guaranteed waterproofing or a precise custom fit should evaluate specialized covers. Overall it offers durable construction and sensible features for the price.

Frequently Asked Questions

Is this tarp fully waterproof?
The tarp is designed to be waterproof and sheds rain well for typical outdoor use, but some customers report mixed results in prolonged standing water or seam-heavy exposure.

Are the grommets reinforced and spaced for easy tie-down?
Yes, metal grommets are spaced about 17.7 in apart and the edges are reinforced to reduce fraying under tension.

Will the size be exact when it arrives?
Yes, the product ships at its finished 10x20 ft size so it is ready to use without significant trimming or adjustments.