ShadeMart 17ft x 22ft Blue Sun Shade Sail UPF50 Rectangle - Cool

Our review of the ShadeMart 17' x 22' Blue Sun Shade Sail finds it most useful for homeowners and small businesses who need an affordable, durable way to reduce heat and UV exposure across a patio, carport or pool area. The biggest reason to buy is its combination of woven HDPE fabric and UPF50-rated sun protection, which makes the sail breathable, water permeable and effective at lowering daytime temperatures by a perceptible margin. Installation is straightforward with proper hardware, and the material and stainless steel corner D rings give it a reassuringly heavy-duty feel.

Key Features

• Woven HDPE fabric: provides a durable, tear-resistant canopy that lets air move through while blocking a high percentage of sunlight.
• UPF50 sun protection: blocks up to 95% of harmful UV rays, helping to reduce heat and sun exposure beneath the sail.
• Stainless steel D rings: reinforced at each corner with heavy duty white webbing to create secure anchor points for standard hardware kits.
• Water permeable design: the fabric allows rain to pass through rather than pool on top, which reduces stress on the sail and attachments.
• Custom size options: the brand offers custom sizing so buyers can match irregular venues, provided measurements are taken carefully.
• Rectangle styling: a simple shape that fits a variety of mounting arrangements and integrates with existing outdoor decor.

Who It's For

This shade sail is best suited to homeowners, renters with permission to mount anchors, and small businesses who want a large, breathable canopy for patios, carports, pergolas or pool areas. It is particularly attractive when heat reduction and UV protection are priorities, and for anyone who prefers a fabric that drains rather than holds water.

Those who need a fully waterproof cover, a perfectly rigid structure, or a precisely machined geometric rectangle without any variation should look elsewhere or consider hard-top canopies and awnings. Also verify mounting points and measure carefully if ordering a custom size to avoid fit issues.

Pros & Cons

Pros

• High UPF protection and material that noticeably lowers temperatures under the sail.
• Robust construction with stainless steel D rings and heavy webbing for secure attachment.
• Breathable, water permeable fabric that reduces pooling and resists prolonged moisture buildup.
• Custom sizing options make it adaptable to many outdoor layouts.

Cons

• Not waterproof, so it will not provide full rain protection during heavy storms.
• Manual measurement can lead to slight variations in shape, and some buyers reported inconsistencies in exact rectangle dimensions.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	17 ft x 22 ft
Material	Woven HDPE (High Density Polyethylene)
Sun Protection	UPF50 / blocks up to 95% UV
Corner Hardware	Stainless steel D rings with heavy duty white webbing
Water Performance	Water permeable and breathable (not waterproof)

Our Verdict

The ShadeMart 17' x 22' Blue Sun Shade Sail is a practical, value-oriented choice for anyone who needs effective UV protection and cooler outdoor spaces without a rigid structure. Its HDPE fabric, reinforced corners and water permeable design make it durable and low maintenance, though buyers should not expect waterproof performance and should measure carefully for custom fits. For patios, carports and poolside shade where breathability and sun blocking matter most, it is a solid buy.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric is water permeable and breathable, so it will allow water to pass through rather than acting as a waterproof canopy.

How much UV protection does it provide?
The material is rated UPF50 and is stated to block up to 95% of harmful UV rays and sunlight.

Can it be attached to trees or poles?
Yes, with proper hardware kits the sail can be mounted to poles, trees, walls, roofs and other structures; secure anchoring and correct tensioning are important.