11ft x 17ft Grey Sun Shade Sail UPF50 Rectangle - Cool, Breathable

Our review of the ShadeMart 11' x 17' grey rectangle sun shade sail finds it best suited for homeowners and small businesses who want durable, breathable solar protection without adding a solid roof. The biggest reason to buy is its practical combination of woven HDPE fabric and stainless steel corner D rings that deliver long-lasting UV protection and sturdy attachment points for common outdoor mounts. It is not waterproof, but it does cut sunlight by up to 95% and noticeably lowers temperatures under the canopy.

Key Features

• MATERIAL: Woven HDPE fabric provides a strong, low-stretch surface that resists sun degradation while remaining lightweight for easier handling.
• UV PROTECTION: Blocks up to 95% of harmful UV rays so patios, pools, and carports stay significantly cooler during peak sun hours.
• BREATHABLE DESIGN: Water permeable and air-permeable weave lets rain and breeze pass through, reducing uplift in storms and avoiding water pooling.
• HARDWARE READY: Stainless steel corner D rings attached to heavy duty webbing offer reliable anchor points for standard shade hardware kits.
• CUSTOM SIZING: Available in multiple sizes and customizable options so buyers can order a sail that matches odd layouts or larger venues.
• STYLING: Rectangle shape and neutral grey color integrate into many outdoor schemes while serving as a decorative canopy.

Who It's For

This shade sail is ideal for homeowners with patios, pergolas, carports, pool decks or yards who need effective sun protection and prefer a breathable, low-maintenance fabric rather than a solid roof. It also suits renters or seasonal users because the sail can be removed and reinstalled as needed.

It is not for buyers seeking a waterproof canopy or a rigid permanent structure; if a fully waterproof cover or solid shelter is required, a different product would be more appropriate. Also, precise measuring is important for custom orders since sizes are produced to the measured area.

Pros & Cons

Pros

• Durable HDPE weave resists sun damage and keeps shape over seasons.
• High UV blockage lowers surface temperatures, making outdoor spaces more comfortable.
• Stainless steel D rings and heavy webbing provide secure, long-lasting attachment points.
• Breathable, water-permeable design prevents pooling and allows airflow.

Cons

• Not waterproof, so it will not stop rain and is intended for sun protection only.
• Some customers report size and shape variations, so accurate measuring and expectations for manual tolerance are necessary.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	11' x 17'
Material	Woven HDPE (High Density Polyethylene)
UV Protection	Blocks up to 95% of UV rays (UPF50)
Hardware	Stainless steel corner D rings with heavy duty webbing
Water Resistance	Water permeable, not waterproof

Our Verdict

For those who need reliable sun protection and airflow, the ShadeMart 11' x 17' rectangle sail is a practical, good-value option that combines durability with effective UV blocking and easy attachment points. It is especially worthwhile for patios, pools, and carports where lowering temperature and allowing rain to pass through are priorities; avoid it if you need a waterproof solution.

Frequently Asked Questions

Is this shade sail waterproof?
No. The sail is water permeable and designed to let water pass through; it is not a waterproof canopy.

What hardware do I need to install it?
Standard shade sail hardware kits with turnbuckles, pad eyes or poles work with the stainless steel D rings; choose anchors rated for outdoor loads.

Will this block the sun effectively?
Yes. The woven HDPE fabric blocks up to 95% of harmful UV rays and will noticeably reduce temperature under the sail.