13 ft x 16 ft x 20.6 ft Right Triangle Shade Sail - Durable UV Block

Our review of this 13' x 16' x 20.6' right triangle shade sail finds it best for homeowners who need broad, reliable sun protection over patios, pools, or carports. The biggest reason to buy is its fabric performance: made from virgin polyethylene it blocks up to 95% of UV while remaining lightweight and ventilated, so it cools and shades without trapping heat. The design also uses curved edges cut to a precise radian so the sail avoids middle sagging and keeps a clean, tensioned look after installation.

Key Features

• Corner-to-corner sizing: Measurements are taken from corner to corner to ensure an accurate fit for triangular layouts and custom installations.
• Curved edge design: Slightly curved edges are calculated to reduce sag in the center, improving long-term appearance and tension.
• Virgin polyethylene fabric: The material provides high tensile strength while remaining lightweight for easier handling and durable use outdoors.
• High UV and visibility blockage: Offers up to 95% UV blockage and 90% visibility blockage to significantly reduce sun exposure and glare.
• All-season benefits: Provides summer shading and cooling, some night frost protection, and light rain resistance during brief showers.
• Custom orders available: The manufacturer accepts customization and includes a 3-Year Limited Warranty for added confidence.

Who It's For

This shade sail suits homeowners with medium to large outdoor spaces such as a backyard, pool area, patio, balcony, driveway or carport who want a durable, high-coverage triangular option. It is also a good choice for people who prefer a breathable fabric that reduces heat while still allowing ventilation.

It is less suitable for those who need a fully waterproof canopy for heavy, sustained rain or for very small, irregular-shaped areas where a custom shape other than a triangle would fit better; in those cases a different cover or a fully waterproof awning would be better.

Pros & Cons

Pros

• Effective sun protection with up to 95% UV blockage to keep shaded areas noticeably cooler.
• Durable virgin polyethylene fabric combines tensile strength with light weight for easier installation and longevity.
• Curved edges reduce sagging for a cleaner look and maintained tension over time.
• Customizable sizing and a 3-Year Limited Warranty provide flexibility and reassurance.

Cons

• Only slightly rainproof; not intended as a full waterproof solution during heavy storms.
• Hardware reviews are mixed, so buyers should be prepared to source or upgrade fittings for some installations.

Specifications

Shape	Right triangle
Size (corner to corner)	13' x 16' x 20.6'
Material	Virgin polyethylene
UV blockage	Up to 95%
Visibility reduction	Up to 90%
Warranty	3-Year Limited Warranty
Customization	Available on request

Our Verdict

The 13' x 16' x 20.6' right triangle shade sail is a practical, value-driven choice for homeowners who need reliable sun protection with good airflow and a tidy installed appearance. Its strong polyethylene fabric, precise curved-edge cut, and high UV blockage make it worthwhile where cooling and shading are the priority, though buyers expecting full waterproofing should consider other coverings.

Frequently Asked Questions

Is this sail waterproof?
Answer. The fabric is slightly rainproof for brief showers but is not fully waterproof for heavy or prolonged rain.

How is the size measured?
Answer. Measurement is taken from corner to corner to provide accurate sizing for triangular layouts.

Does hardware come with the sail?
Answer. Hardware is included but customer feedback is mixed, so some buyers choose to upgrade or replace fittings for specific installations.