12 ft x 13 ft x 17.7 ft Brown Right Triangle Sun Shade Sail - Durable

In this review the focus is on a large right triangle shade sail aimed at homeowners and small businesses who need reliable sun protection for outdoor spaces. The bottom line: this sail delivers heavy-duty shading and cooling with up to 95% UV blockage, making it a practical choice for patios, pools, and carports where sun exposure is a concern. Installation is straightforward for people comfortable with basic hardware, and the slightly curved edge design keeps the fabric taut for a neat, low-sag appearance.

Key Features

• Corner-to-corner measurement: The stated size is measured from corner to corner so buyers can plan anchor points and coverage accurately.
• Curved edge design: Edges are made slightly curved using a calculated radian to prevent sagging and maintain a clean, taut look over time.
• High-performance fabric: Made from virgin polyethylene, the sail is lightweight yet strong, offering good tensile strength for outdoor use.
• Excellent UV protection: Provides up to 95% UV blockage and 90% visibility blockage to keep shaded areas cooler and protect skin and surfaces.
• All-season utility: The material supports summer shading and ventilation, reduces frost risk at night, and is slightly rainproof in light precipitation.
• Custom orders and warranty: Custom sizing is available and the product includes a 3-Year Limited Warranty for added confidence.

Who It's For

The sail is best for homeowners with a backyard, patio, pool area, carport or driveway who need broad, reliable shade and want a durable fabric that blocks most UV rays. It also suits small business owners who need affordable sun coverage for outdoor seating or displays.

Those who should look elsewhere include buyers who require full waterproofing in heavy rain or a permanent hard canopy solution, and people who cannot access three solid anchor points at the correct distances, since the triangular layout depends on proper mounting geometry.

Pros & Cons

Pros

• Provides strong sun protection with up to 95% UV blockage for cooler, safer outdoor spaces.
• Curved-edge construction and corner-to-corner sizing reduce mid-span sag for a tidier appearance.
• Lightweight yet tensile virgin polyethylene resists wear and is easy to handle during installation.
• Custom sizing options and a 3-Year Limited Warranty add flexibility and reassurance.

Cons

• Not fully waterproof in heavy rain, so it is less suitable where complete weatherproofing is required.
• Included hardware draws mixed feedback, so buyers may prefer to source stronger fittings for long-term installations.

Specifications

Shape	Right triangle
Size (corner to corner)	12 ft x 13 ft x 17.7 ft
Color	Brown
Material	Virgin polyethylene
UV blockage	Up to 95%
Visibility reduction	About 90%
Warranty	3-Year Limited Warranty

Our Verdict

This right triangle shade sail is a solid value for anyone needing broad sun protection and a neat, sag-resistant installation. With strong UV blocking, a durable polyethylene fabric and the option to order custom sizes, it suits patios, pools and carports well; buyers should plan anchor points carefully and consider upgrading hardware for the longest service life.

Frequently Asked Questions

How is the size measured?
The measurement is taken from corner to corner, so you should measure anchor distances accordingly.

Is the sail waterproof?
The fabric is slightly rainproof for light showers but not fully waterproof for heavy or prolonged rain.

Can I get a custom size?
Yes, all products are available to be customized and the manufacturer offers a 3-Year Limited Warranty.