21 ft x 22 ft x 30.4 ft Right Triangle Sun Shade Sail - Durable UV

In this review the 21' x 22' x 30.4' right triangle sun shade sail is evaluated for homeowners and property managers who need a large, light-weight canopy to cut heat and sun exposure. The bottom line: this shade sail is best for outdoor spaces where strong UV protection and a neat, tensioned appearance matter, because its curved-edge design and virgin polyethylene fabric deliver up to 95% UV blockage while resisting mid-span sagging for a cleaner look.

Key Features

• Corner-to-corner measurement: Sizing is specified from corner to corner so buyers can plan attachment points precisely for a stable install.
• Curved edge design: Edges are slightly curved based on a calculated radian to prevent sagging in the middle and maintain a taut, attractive canopy.
• Virgin polyethylene fabric: The material combines strong tensile strength with low weight for easy handling and long term performance.
• High UV and visibility reduction: The sail blocks up to 95% of UV and about 90% of visibility to provide effective cooling and sun protection.
• All-season utility: It provides shading and ventilation in summer, anti-frost protection at night, and light rain resistance during wet weather.
• Customizable options and warranty: The product can be custom ordered and includes a 3-Year Limited Warranty for added peace of mind.

Who It's For

This shade sail is ideal for homeowners with a pool, patio, driveway or garden who want a large triangular cover that reduces sun and heat without blocking airflow. It suits DIY installers who can use existing posts, trees or anchors and appreciate a fabric that is strong yet light to lift into place.

It is less appropriate for buyers needing a fully waterproof awning or a rigid structure; the sail is only slightly rainproof and relies on proper tensioning and hardware (which some customers note as mixed) to perform best.

Pros & Cons

Pros

• Excellent sun protection with up to 95% UV blockage, keeping pool areas and patios noticeably cooler.
• Curved-edge construction prevents mid-span sagging and improves long-term appearance.
• Lightweight virgin polyethylene that balances strength and ease of installation.
• Custom order availability and a 3-Year Limited Warranty provide flexibility and assurance.

Cons

• Only slightly rainproof, so it is not a substitute for a waterproof canopy in heavy storms.
• Hardware reception is mixed among customers, so buyers may want to plan for stronger anchors or different fittings if needed.

Specifications

Shape	Right triangle
Size (corner to corner)	21' x 22' x 30.4'
Material	Virgin polyethylene
UV blockage	Up to 95%
Visibility reduction	About 90%
Weather resistance	Shading/cooling, anti-frost, slightly rainproof
Warranty	3-Year Limited Warranty

Our Verdict

For anyone needing a large triangular shade that prioritizes UV protection, airflow and a tidy, tensioned look, this sail is a practical value. Its strong yet light virgin polyethylene fabric and curved edges solve common sagging issues, and customization plus a 3-Year Limited Warranty make it a sensible choice for patios, pools and driveways where full waterproofing is not required.

Frequently Asked Questions

Can this sail be used over a pool?
Yes. Customers report it keeps pools cooler and provides effective sun protection while allowing ventilation.

Is the fabric waterproof?
No. The sail is slightly rainproof but not fully waterproof; it is designed principally for shading and ventilation.

Are custom sizes available?
Yes. All products are available to be customized to fit specific anchor points and dimensions.