ShadeMart 9ft x 17ft Grey Rectangle Sun Shade Sail - Breathable UV

In this review of the ShadeMart 9' x 17' Grey Sun Shade Sail, the bottom line is simple: it is a practical, affordable way to add substantial sun protection and airflow to patios, carports, or poolside equipment without permanent construction. The reviewer found the woven HDPE fabric and reinforced corners deliver on durability and shade, while the breathable design keeps temperatures noticeably lower. This sail is best for homeowners and DIYers who want a cost-effective, easy-to-install canopy that blocks UV and lets water pass through instead of pooling.

Key Features

• Woven HDPE fabric: provides a strong, tear-resistant surface that blocks up to 95% of harmful UV rays while remaining breathable.
• Stainless steel D rings: heavy-duty corner rings attached to white webbing make anchoring reliable and resist corrosion in outdoor conditions.
• Water permeable: the sail allows rainwater and air to pass through, preventing water pooling and reducing wind strain on the fabric.
• Temperature reduction: by blocking direct sunlight the sail can lower the shaded area by roughly 10-15 degrees, improving outdoor comfort.
• Custom sizing available: a range of sizes and the option to customize ensure the sail can fit irregular venues such as patios, pergolas, and carports.
• Decorative rectangle shape: a simple rectangular profile that integrates with existing outdoor design while providing practical coverage.

Who It's For

This ShadeMart rectangle sail suits homeowners, renters, and small property managers who need a flexible shading solution for patios, pools, carports, or garden seating areas. It is especially useful where water runoff is desired rather than a waterproof cover, and for anyone who values UV protection with ventilation.

Those who need a fully waterproof canopy or a rigid permanent roof should look elsewhere, since this style is explicitly not waterproof. Also, buyers who want precise factory-cut measurements should be prepared for small manual measurement variances and double-check site dimensions before ordering a custom size.

Pros & Cons

Pros

• Strong material and stitching give the sail a durable, long-lasting feel for exterior use.
• Breathable design prevents water pooling and improves airflow under the canopy.
• Easy to install with common hardware; corner D rings and webbing simplify attachment to poles or walls.
• Good value compared with building a permanent structure and effective at reducing temperature under the sail.

Cons

• Not waterproof, so it will not keep an area dry in heavy rain.
• Manual measurement variances mean customers must measure carefully before ordering a custom size.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	9' x 17'
Material	Woven HDPE (High Density Polyethylene)
Corner Hardware	Stainless steel D rings with heavy duty white webbing
Functionality	Water permeable, breathable, UV resistant

Our Verdict

The ShadeMart 9' x 17' Grey Sun Shade Sail is a solid, cost-effective choice for anyone wanting reliable UV protection and airflow for outdoor spaces without installing a permanent roof. It offers durable hardware, easy installation, and temperature reduction, making it good value for patios, carports, and pool-side coverage as long as you do not require waterproofing.

Frequently Asked Questions

Is this shade sail waterproof?
No, this style is water permeable and breathable, designed to let water pass through rather than be fully waterproof.

Can it be attached to trees or poles?
Yes, with proper hardware kits the sail can be mounted to poles, trees, walls, or roofs for flexible installation.

Does it block UV rays?
Yes, the woven HDPE fabric blocks up to 95% of harmful UV rays while still allowing air flow.