ShadeMart 7 ft x 21 ft Brown Sun Shade Sail UPF50 Rectangle

In this review of the ShadeMart 7 ft x 21 ft Brown Sun Shade Sail, the reviewer finds it best for homeowners and small-business owners who need a durable, breathable canopy that blocks intense sun without trapping heat. The sail's woven HDPE fabric and stainless steel D rings make a convincing case for long-term outdoor use, while the UPF50 sun protection and water-permeable design are the single biggest reasons to buy for patios, carports, pergolas and pool areas where airflow and UV reduction matter most.

Key Features

• Woven HDPE fabric: The high density polyethylene weave provides strong, tear-resistant coverage that reduces sun exposure and stands up to regular outdoor use.
• UPF50 sun protection: Blocks up to 95% of harmful UV rays so outdoor spaces stay noticeably cooler and protect skin and furnishings.
• Water permeable design: Allows rain and air to pass through, preventing water pooling and improving ventilation under the sail.
• Stainless steel corner D rings: Heavy duty metal rings attached to strong white webbing make secure anchoring to posts, walls or trees straightforward.
• Custom sizing available: Multiple sizes and custom options mean the sail can be tailored to nonstandard spaces when measured accurately before purchase.

Who It's For

The ShadeMart rectangle sail suits homeowners, landlords and small commercial properties that want a low-maintenance shade solution for patios, carports, pergolas and poolside areas. Its combination of UV resistance and breathability makes it especially useful in hot, sunny climates where airflow and sun control are priorities.

Those who need a fully waterproof canopy or a precisely cut architectural sail for a high-end installation should look elsewhere, since this style is explicitly not waterproof and may have slight size variation from manual measurements.

Pros & Cons

Pros

• High sun protection with UPF50-rated fabric that cuts heat and UV exposure.
• Durable construction: woven HDPE and stainless steel D rings offer long service life in outdoor conditions.
• Water-permeable and breathable, so it sheds water and improves cooling beneath the sail.
• Custom size options allow better fit for irregular areas when measured carefully.

Cons

• Not waterproof, so it will not keep a seating area dry in heavy rain.
• Some customers report size and shape variation, so accurate measurement and expectation management are important.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	7 ft x 21 ft
Material	Woven HDPE (high density polyethylene)
UV Protection	Blocks up to 95% (UPF50)
Corners	Stainless steel D rings on heavy duty white webbing
Water Resistance	Water permeable, not waterproof

Our Verdict

The ShadeMart 7 ft x 21 ft Brown Rectangle Shade Sail is a practical, value-oriented choice for those who need reliable sun protection and airflow for patios, carports or pool areas. Its robust HDPE fabric and stainless steel fittings make it durable, and the UPF50 performance and water-permeable design deliver cooler, more comfortable outdoor spaces despite the sail not being waterproof.

Frequently Asked Questions

Is this shade sail waterproof?
No. The fabric is water permeable and designed to allow water and air to pass through rather than provide waterproof coverage.

Can it block UV rays effectively?
Yes. The sail blocks up to 95% of harmful UV rays and carries UPF50-level sun protection to reduce heat and sun exposure.

Will the corners and hardware hold up to wind?
The corners use stainless steel D rings attached to heavy duty webbing for secure anchoring, but proper installation and appropriate hardware are required for windy locations.