RAINDEWAY 20x30 ft Super Heavy Duty Tarp 18 Mil - Weatherproof Cover

Our review of the RAINDEWAY 20x30 ft tarp finds it best suited for homeowners, contractors, and outdoor enthusiasts who need a heavy, dependable cover for equipment and materials. The single biggest reason to buy is its 18 mil thickness and dense 16 x 16 weave, which deliver a noticeably heavy-weight, tear-resistant sheet that stands up to sun and wet weather. This tarp is practical for anyone needing a robust, reversible brown/gray cover with reinforced edges and metal grommets for long-term outdoor use.

Key Features

• 18 mil thickness: The extra-heavy 18 mil construction and roughly 9.2 oz/sq yd weight give the tarp strong puncture and tear resistance for rugged jobs.
• 16 x 16 weave: A tightly woven polyethylene fabric provides reliable waterproofing and helps the tarp resist fraying and UV degradation.
• Reinforced edges and metal grommets: Edge reinforcement with metal grommets spaced about 18 in apart makes it simple to secure the tarp tightly to trailers, roofs, or frames.
• Reversible color options: The reversible brown/gray finish lets users choose which side faces out for visual or heat-control preference without sacrificing performance.
• Weather and UV resistance: The tarp is designed to block sunlight and shed water, protecting gear from sun damage, rain, and dirt in variable conditions.
• Finished full size: The stated 20x30 ft finished dimensions are intended to be usable as advertised, avoiding undersized surprises when covering large items.

Who It's For

This tarp is a solid fit for property owners protecting outdoor furniture, pools, boats, and firewood, as well as contractors who need a heavy cover for building materials and equipment. Its weight and grommet spacing make it practical for semi-permanent or seasonal use where a secure tie-down is needed.

Customers who need an ultra-light, packable tarp for backpacking or frequent one-handed handling should look elsewhere; similarly, those requiring a custom-cut, lighter interior tarp for delicate surfaces may prefer finer, lighter fabrics than this heavy-duty model.

Pros & Cons

Pros

• Durable 18 mil material resists tears and abrasion under heavy use.
• Reinforced edges with metal grommets make securing straightforward and durable.
• UV-resistant weave helps protect items from sun damage and fading.
• The reversible brown/gray sides add practical visual options and versatility.

Cons

• At this heavy weight, the tarp can be bulky and somewhat difficult to fold or maneuver alone.
• Some buyers may find the finished size larger than expected, so planning coverage is advisable.

Specifications

Brand	RAINDEWAY
Finished size	20 ft x 30 ft
Material	Tightly-woven polyethylene, 16 x 16 weave
Thickness / weight	18 mil, approx 9.2 oz/sq yd
Grommet spacing	About 18 in
Edges	Reinforced with metal grommets
Colors	Reversible brown / gray

Our Verdict

The RAINDEWAY 20x30 ft 18 mil tarp is a practical, heavy-duty choice for anyone needing robust weather and UV protection for outdoor gear or work sites; its reinforced edges and grommet spacing make it easy to secure, and its dense weave holds up under tough conditions, offering good value for the weight-conscious buyer.

Frequently Asked Questions

Is the tarp waterproof?
The tightly woven polyethylene and coating create a strong waterproof barrier suitable for rain protection and shedding water.

Can the tarp be used on a roof or truck?
Yes, the reinforced edges and metal grommets allow secure attachment to roofs, trucks, and trailers when tied down properly.

Which side should face out, brown or gray?
Either side can face out; the reversible design is meant to give a choice of appearance or marginal heat reflection differences.