RAINDEWAY 12 Mil Heavy Duty White Tarp 16x20 ft - Durable Weatherproof

In this review the RAINDEWAY 12 Mil Heavy Duty White Tarp proves to be a practical, no-nonsense cover for outdoor projects and emergency protection. It's aimed at homeowners, DIYers, campers and anyone who needs a thick, reinforced tarp to shield gear from sun, wind and light precipitation. The single biggest reason to consider it is the combination of extra thickness and reinforced edges with metal grommets, which delivers a sturdier sheltering option than thin utility tarps while remaining easy to handle and position.

Key Features

• 12 Mil thickness: The extra thick material gives improved tear resistance and a more durable feel than standard lightweight tarps.
• Waterproof construction: Tightly-woven polyethylene fibers and a 6 oz per sq yard weight help block moisture and light rain from passing through.
• UV resistant: Built to resist sun exposure so it will hold up longer when used as a shade sail or covering outdoor equipment.
• Reinforced edges with metal grommets: Strong hems and evenly spaced grommets make it easier to secure the tarp and reduce fraying at attachment points.
• Full finished size: The listed 16x20 ft is supplied as a finished size tarp so customers receive the full usable coverage without large size loss.
• Multipurpose use: Grommet spacing near 17.7 in supports applications from campers and furniture covers to makeshift shelters or shade sails.

Who It's For

This tarp is best for homeowners doing yard work, contractors needing a heavy cover for materials, and outdoor enthusiasts who want a thicker tarp for shade or temporary shelter. Its extra thickness and reinforced edges suit repeated use and situations where wind and sun exposure are expected.

People who need a guaranteed heavy-duty, marine-grade waterproof tarp or who require a perfectly sized custom fit for specialized covers should look elsewhere; while this tarp offers solid water resistance and UV protection, some users report mixed results with complete waterproofing under prolonged exposure.

Pros & Cons

Pros

• Thick 12 mil material and 6 oz/sq yd weight provide a substantial, durable feel.
• Reinforced edges and metal grommets reduce tearing and make securing the tarp easier.
• UV resistant finish extends life when used outdoors as a shade or cover.
• Finished full size delivers the expected coverage without significant size loss.

Cons

• Waterproof performance is mixed in customer reports, so it may not be fully watertight in heavy, prolonged storms.
• Some buyers note the tarp can be slightly larger than expected, which may require trimming or extra fastening for a snug fit.

Specifications

Material	Tightly-woven polyethylene fibers
Thickness	12 Mil
Weight	Approx 6 oz per sq yd
Weave count	14 x 14
Finished size	16 x 20 ft
Grommet spacing	About 17.7 in
Edges	Reinforced with metal grommets

Our Verdict

The RAINDEWAY 12 Mil Heavy Duty White Tarp is a practical choice for users who need a thicker, reinforced cover for general outdoor protection. It offers good value with strong build quality, UV resistance and dependable grommeted edges, though those requiring guaranteed waterproofing in extreme weather should consider purpose-built marine tarps. For most yard, camping and utility uses, it delivers durable protection at a reasonable price.

Frequently Asked Questions

Is the listed size the usable size?
Yes, the tarp is supplied as a finished 16x20 ft size and is intended to provide the full usable coverage.

Will this tarp withstand long sun exposure?
It is UV resistant and designed to tolerate sun exposure better than thin tarps, which helps extend its outdoor lifespan.

Is it fully waterproof?
The tarp is made for waterproofing and resists light to moderate rain, but some users report mixed results under heavy or prolonged downpours, so expect varying performance in extreme conditions.