11 ft x 18 ft x 21.1 ft Turquoise Right Triangle Sun Shade Sail

In this review of the 11 ft x 18 ft x 21.1 ft Turquoise Right Triangle Sun Shade Sail, the bottom line is simple: it is a practical, heavy-duty shade solution for homeowners who want strong sun protection without a permanent structure. The reviewer found the sail best for patios, pools and carports where measured corner-to-corner sizing and a slightly curved edge keep the fabric taut and visually pleasing. The sail's virgin polyethylene fabric and up to 95% UV blockage make it an easy recommendation for anyone prioritizing cooling and UV protection during long summer days.

Key Features

• Corner-to-corner measurement: The sail is sized from corner to corner so you get predictable coverage when planning mounting points.
• Curved edge design: Edges are cut with a precise radian to prevent sagging and maintain a flat, attractive surface once tensioned.
• High-performance fabric: Made of virgin polyethylene for strong tensile strength and low weight, providing durable season-long service.
• Excellent sun protection: The fabric blocks up to 95% of UV and reduces visibility up to 90%, helping keep shaded areas cooler and safer.
• Weather versatility: The sail provides cooling and ventilation in summer, anti-frost effect at night, and slight rain resistance during light showers.
• Custom orders and warranty: Available to be customized for nonstandard needs and backed by a 3-Year Limited Warranty for added peace of mind.

Who It's For

The shade sail is ideal for homeowners with a backyard, pool area, patio, balcony or driveway who need a flexible, nonpermanent shade solution. It suits users who prefer a fabric canopy that is lightweight to handle and that can be tensioned between trees, posts or walls for quick seasonal use.

Those who should look elsewhere include people who need full waterproof protection in heavy rain or a permanent, structural roofing solution. Also, if a precise custom fit is required for an unusual geometry, plan to use the seller's customization service rather than expecting an off-the-shelf perfect fit.

Pros & Cons

Pros

• Strong UV protection and cooling thanks to fabric that blocks up to 95% of UV rays.
• Curved edges and corner-to-corner sizing produce a taut, low-sag appearance once installed.
• Lightweight yet durable virgin polyethylene offers good tensile strength and season-long durability.
• Flexible use cases: patios, pools, carports and areas between trees work well with this sail.

Cons

• Hardware quality receives mixed feedback, so buyers may want to inspect or upgrade mounting kit depending on their installation.
• Only slightly rainproof, so it is not a substitute for full rain or storm protection.

Specifications

Shape	Right triangle
Size (corner to corner)	11 ft x 18 ft x 21.1 ft
Color	Turquoise
Material	Virgin polyethylene
UV blockage	Up to 95%
Visibility blockage	Up to 90%
Warranty	3-Year Limited Warranty

Our Verdict

This turquoise right triangle shade sail is a smart, value-focused choice for people who need reliable summer sun protection without a permanent structure. Its curved-edge design and strong polyethylene fabric deliver a tidy, durable canopy that cools and shields outdoor spaces; just plan for light rain only and check hardware if you want heavy-duty anchors.

Frequently Asked Questions

Is this sail waterproof?
The sail is slightly rainproof for light showers but not fully waterproof or designed for heavy, sustained rain.

How is the measurement taken?
Measurements are taken from corner to corner and edges are cut with a calculated radian to prevent sagging when tensioned.

Can I get a custom size?
Yes, all products are available to be customized; contact the seller for nonstandard dimensions and options.