ShadeMart 17ft x 17ft Blue Sun Shade Sail UPF50 Square - Heavy Duty

In this review of the ShadeMart 17' x 17' Blue Sun Shade Sail, the bottom line is simple: this is a heavy duty, breathable canopy for anyone who needs reliable UV protection over a patio, carport or pool area. The sail is best for homeowners and DIY installers who want a large, decorative rectangle that cuts sunlight and heat while remaining water permeable. Its woven HDPE fabric and stainless steel corner D rings are the standout features that make it durable and practical for outdoor use.

Key Features

• Material: Woven HDPE fabric provides a sturdy, tear-resistant surface that holds up under sun exposure and regular outdoor use.
• UV Protection: Blocks up to 95% of harmful UV rays, reducing surface and ambient temperatures by roughly 10 to 15 degrees for more comfortable outdoor living.
• Breathability: Water permeable and breathable design lets rain and air pass through so the sail does not pool water and drains naturally.
• Attachment Hardware: Corner D rings made of stainless steel attached to heavy duty white webbing make mounting to poles, walls or trees straightforward with the right kit.
• Custom Size Option: Available in multiple sizes and customizable dimensions so buyers can match the sail to patios, pergolas or carports, noting the fabric area remains constant.
• Styling: Rectangle shape and blue color offer a clean, versatile look that functions as both shade and a decorative canopy in outdoor spaces.

Who It's For

The ShadeMart rectangle sail is ideal for homeowners, renters with permission to mount outdoor hardware, and small business owners who need a durable shade solution for patios, seating areas, play spaces or carports. It particularly suits people who value breathability and UV protection rather than a fully waterproof shelter.

Those who should look elsewhere include buyers who need a waterproof cover for full rain protection or users seeking a perfectly rigid rectangle without any size variation; customers should measure carefully because manual measurements can lead to slight shape differences even though the fabric area stays the same.

Pros & Cons

Pros

• High UPF protection and woven HDPE fabric offer strong sun defense and long-term durability.
• Breathable, water permeable design prevents water pooling and allows airflow to reduce heat buildup.
• Stainless steel D rings and heavy duty webbing provide secure anchor points for common mounting setups.
• Custom sizing and multiple color options let you tailor the sail to different outdoor spaces and styles.

Cons

• Not waterproof, so it will not fully protect against driving rain or serve as a rain shelter.
• Some buyers report size and shape variance, so exact rectangle edges may not be perfect without careful measurement.

Specifications

Brand	ShadeMart
Size	17' x 17'
Shape	Rectangle
Material	Woven HDPE (High Density Polyethylene)
UV Protection	Blocks up to 95% of harmful UV rays (UPF50)
Corners	Stainless steel D rings attached to heavy duty white webbing
Water Resistance	Water permeable and breathable (not waterproof)

Our Verdict

The ShadeMart 17' x 17' Blue Sun Shade Sail is a practical, value-oriented choice for anyone wanting dependable UV protection and airflow for patios, pools or carports. Its durable HDPE fabric and stainless steel fittings mean it will last through regular outdoor exposure, and the breathable design avoids water pooling. Choose this sail if you need sun control and durability rather than rainproof coverage, and measure carefully before ordering a custom fit.

Frequently Asked Questions

Is this shade sail waterproof?
No, the fabric is water permeable and breathable; it lets water pass through and is not a waterproof canopy.

How much UV protection does it provide?
The sail blocks up to 95% of harmful UV rays and is designed with UPF50-level protection to reduce heat and sun exposure.

Can I mount this to poles, walls, or trees?
Yes, the stainless steel D rings on heavy duty webbing allow attachment to poles, trees, walls or roofs when used with the proper hardware kit.