ShadeMart 20 ft x 23 ft Black Rectangle Sun Shade Sail - Cool, UV50

In this review the ShadeMart 20 ft x 23 ft Black Rectangle Sun Shade Sail is examined for homeowners and small-business owners who need a large, breathable canopy for patios, carports, and poolside areas. The biggest reason to consider it is its combination of durable woven HDPE fabric with stainless steel corner D rings and heavy duty webbing, which delivers substantial UV reduction and long-term outdoor performance while remaining water permeable and breathable.

Key Features

• Woven HDPE fabric: The high density polyethylene weave blocks up to 95% of harmful UV rays while remaining breathable, so it lowers surface temperatures and protects people beneath it.
• Stainless steel corner D rings: Heavy duty metal rings attached to strong white webbing provide secure anchor points that handle tension and repeated outdoor use.
• Water permeable design: The sail allows water and air to pass through, reducing wind load and preventing pooling in rainy conditions though it is not fully waterproof.
• Custom sizing options: Multiple sizes and custom orders are available so buyers can match unusual spaces, provided they measure the installation area accurately.
• Rectangle styling: The simple rectangle shape integrates with many outdoor layouts and acts as both functional shade and a decorative overhead element.
• Versatile installation: With appropriate hardware, the sail can be mounted to poles, trees, walls, roofs, pergolas, or other structures for many outdoor uses.

Who It's For

The ShadeMart rectangle sun shade sail is best for homeowners, renters with permission to attach anchors, and small businesses who want a large, cost-effective canopy for patios, carports, pergolas, and pool areas; it suits anyone prioritizing UV protection and airflow over complete waterproofing. It is especially useful where cooling and durable, long-lasting fabric are key.

Those who should look elsewhere include buyers who need fully waterproof coverage, or customers who cannot add permanent anchor points; a dedicated waterproof awning or solid-roof structure will be a better fit for those specific needs.

Pros & Cons

Pros

• Durable woven HDPE fabric that provides strong UV protection and resists fading from sun exposure.
• Stainless steel D rings and heavy duty webbing give reliable, sturdy anchor points for installation.
• Breathable, water permeable design reduces heat beneath the sail and prevents water pooling in rain.
• Available in custom sizes so it can be adapted to many outdoor spaces.

Cons

• Not waterproof, so it will not keep rain out during storms and is intended primarily for shade and UV protection.
• Size accuracy depends on manual measurements, so ordering a custom size requires careful measuring to avoid fit issues.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	20 ft x 23 ft
Material	Woven HDPE (High Density Polyethylene)
Fastening	Stainless steel D rings attached to heavy duty white webbing
Water resistance	Water permeable, not waterproof
UV protection	Blocks up to 95% of harmful UV rays

Our Verdict

For those seeking a large, economical sun shade that emphasizes UV protection, airflow, and long-term durability, the ShadeMart 20 ft x 23 ft rectangle sail is a strong choice. It offers secure stainless steel anchors and breathable HDPE fabric that noticeably cools covered spaces, making it good value for patios, carports, and poolside shade when waterproofing is not required.

Frequently Asked Questions

Is this shade sail waterproof?
The sail is water permeable and breathable, so it allows water to pass through and is not designed to be waterproof.

Can it be custom sized?
Yes, ShadeMart offers custom sizes; measure the installation area carefully since manual measurements may vary slightly.

What mounting hardware is needed?
Use suitable anchors, turnbuckles, or pole mounts rated for outdoor tension; the sail includes stainless steel D rings attached to heavy duty webbing for secure connection.