ShadeMart 11 ft x 22 ft Black Sun Shade Sail UPF50 Rectangle - Cool

In this review the ShadeMart 11 ft x 22 ft Black Sun Shade Sail is judged on durability, sun protection and practical use around patios and carports. The bottom line: this large rectangle shade sail is best for homeowners who need a heavy duty, breathable canopy that cuts sunlight and heat significantly while remaining easy to attach to existing posts, trees or walls. The sail is made from woven HDPE with stainless steel D rings and heavy webbing, and the single biggest reason to buy is its combination of UPF50 sun protection and weather-permeable design that helps lower temperatures under the canopy.

Key Features

• Material: Woven HDPE fabric provides a sturdy, tear-resistant surface that stands up to regular outdoor use.
• UV Protection: Blocks up to 95% of harmful UV rays, helping to reduce temperatures beneath the sail by at least 10 to 15 degrees.
• Breathability: Water permeable construction lets rain and air pass through so water does not pool and wind loads are reduced.
• Hardware Ready: Stainless steel corner D rings and heavy duty white webbing make attachment to posts, trees, or buildings straightforward with the right hardware kit.
• Custom Size Options: Multiple custom sizes are available so buyers can choose a sail that fits a patio, carport, pool area or pergola when measured carefully.

Who It's For

The ShadeMart rectangle shade sail suits homeowners and small property managers who want a large, economical canopy that emphasizes sun protection and airflow rather than full waterproof coverage. It is a practical choice for patios, pergolas, carports and poolside areas where shade and reduced heat are the priority.

It is less suited for buyers who need a waterproof shelter or an exact factory-cut geometric rectangle without any manual-measurement variance; customers who require a fully waterproof canopy or precise architectural tolerances should look at dedicated waterproof canopies or rigid structures.

Pros & Cons

Pros

• High UPF50-rated fabric that significantly reduces sunlight and heat under the canopy.
• Durable woven HDPE construction with stainless steel D rings and reinforced webbing for strong anchor points.
• Permeable design prevents water pooling and improves wind performance while remaining breathable.

Cons

• Not waterproof, so it will not keep rain out in a heavy downpour.
• Size and exact rectangle shape can vary slightly due to manual measurements, so precise site measurement is required.

Specifications

Our Verdict

The ShadeMart 11 ft x 22 ft rectangle shade sail is a solid value for shoppers wanting strong sun protection and airflow in an economical, heavy duty fabric. It is an especially good pick for patios, carports and pool areas where lowering temperature and UV exposure matter more than waterproofing, and the reinforced corners and stainless D rings make installation with the correct hardware reliable.

Frequently Asked Questions

Is this shade sail waterproof?
No. The fabric is water permeable and breathable, so it allows water to pass through rather than acting as a waterproof cover.

How much sun does it block?
The sail blocks up to 95% of harmful UV rays and is described with a UPF50 sun protection level to reduce sunlight and heat.

Can I customize the size?
Yes. ShadeMart offers multiple custom sizes, but buyers should measure their site accurately because manual measurements can cause slight size variance.