ShadeMart 6 ft x 20 ft Blue Sun Shade Sail UPF50 Rectangle - Patio

Our review finds the ShadeMart 6 ft x 20 ft Blue Sun Shade Sail is a practical choice for homeowners wanting reliable sun protection and an easy DIY canopy solution. In this review the standout is its woven HDPE fabric that blocks up to 95% of harmful UV rays while remaining breathable and water permeable, so it cools outdoor spaces without trapping moisture. The heavy duty white webbing and stainless steel D rings give the sail real longevity for patios, carports, pergolas and pool areas when installed with proper hardware.

Key Features

• Woven HDPE fabric: provides durable, breathable shade that reduces sun exposure while allowing air and water to pass through.
• UPF50 sun protection: blocks up to 95% of harmful UV rays, helping lower ambient temperature by roughly 10 to 15 degrees under the canopy.
• Stainless steel corner D rings: attached to heavy duty white webbing for secure anchoring and better resistance to corrosion outdoors.
• Water permeable design: sheds rainfall through the fabric instead of pooling, reducing stress on attachment points and preventing sagging.
• Custom sizing available: a range of sizes can be ordered to match specific venues, though accurate measurement is important before purchase.

Who It's For

The ShadeMart rectangle shade sail is best for homeowners and renters who want a cost-effective way to add shade over a patio, carport, pool or yard and who prefer a breathable, UV-blocking fabric rather than a fully waterproof cover. It suits DIY installers who can attach the sail to posts, trees, walls or existing structures using appropriate hardware.

Those seeking complete rain protection or a taut architectural tension system may want a different product, since this style is explicitly not waterproof and can vary slightly in shape due to manual measurements.

Pros & Cons

Pros

• High UV protection and measurable cooling effect in direct sun.
• Durable construction with stainless steel D rings and reinforced webbing.
• Breathable, water permeable fabric reduces wind load and prevents water pooling.
• Available in custom sizes to fit nonstandard spaces.

Cons

• Not waterproof, so it will not keep a space dry in heavy rain.
• Size and rectangle accuracy can vary slightly because of manual measurements.

Specifications

Our Verdict

The ShadeMart 6 ft x 20 ft Blue Sun Shade Sail is a good-value option for anyone who needs strong UV protection, airflow, and a durable sail for patios or carports. It performs well in sun-blocking and cooling, is simple to install with the right hardware, and is made to last outdoors; buyers who need waterproof coverage should look elsewhere.

Frequently Asked Questions

Is this shade sail waterproof?
No, the fabric is water permeable and breathable and is not intended to be waterproof.

Will it reduce temperature under the canopy?
Yes, the sail blocks up to 95% of UV and typically lowers ambient temperature under the canopy by about 10 to 15 degrees.

Can it be attached to trees or posts?
Yes, with proper hardware kits the sail can be mounted to poles, trees, walls, roofs and other sturdy structures.