13ft x 20ft x 23.9ft Red Right Triangle Sun Shade Sail - Durable UV

Our review of this right triangle shade sail finds it best suited for homeowners and outdoor spaces that need broad sun protection without a heavy permanent structure. The single biggest reason to buy is the fabric performance: made from virgin polyethylene it blocks up to 95% of UV while remaining light and strong, so it cools and shades patios, pools, and driveways effectively. Measurement taken corner-to-corner and slightly curved edges reduce sagging, giving a clean installed look that performs seasonally for shading and light rain protection.

Key Features

• Corner-to-corner measurement: The sail is measured from point to point so shoppers get predictable coverage when planning posts or anchors.
• Curved edges: Precisely calculated radian curvature prevents sagging in the middle and maintains a taut, attractive canopy once installed.
• Virgin polyethylene fabric: Lightweight yet high tensile strength material delivers durable shade and resists stretching over time.
• High UV blockage: Provides up to 95% UV blockage and about 90% visibility blockage to keep areas cooler and protect skin and furnishings from sun damage.
• Seasonal versatility: Offers shading and ventilation in summer, some frost protection at night, and slight rain resistance during the rainy season.
• Custom orders and warranty: Available for customization and backed by a 3-Year Limited Warranty for added peace of mind.

Who It's For

This shade sail is ideal for homeowners with a backyard, patio, pool area, carport, or balcony who need a simple, removable canopy solution that cools and blocks sunlight without building a permanent structure. It also works well for drives and garden seating where trees or posts can serve as anchor points.

Shoppers who need complete waterproofing, an engineered permanent roof, or exact off-the-shelf hardware compatibility for unusual anchor layouts may want to consider a different product or plan for additional mounting hardware, since the sail is described as only slightly rainproof and hardware reports are mixed.

Pros & Cons

Pros

• Effective sun and heat reduction thanks to 95% UV blockage, keeping pools and patios noticeably cooler.
• Durable, lightweight virgin polyethylene resists stretching while providing strong tensile strength and long seasonal life.
• Curved edges and corner-to-corner sizing give a tidy installation that resists sagging and looks professional.
• Customizable options and a 3-Year Limited Warranty add flexibility and value for longer-term use.

Cons

• Hardware included gets mixed reviews, so buyers may need to purchase upgraded anchors or fittings for some installations.
• Only slightly rainproof, so it is not a substitute for full waterproof shelters in heavy rain.

Specifications

Shape	Right triangle
Size (corner to corner)	13ft x 20ft x 23.9ft
Color	Red
Material	Virgin polyethylene
UV blockage	Up to 95%
Visibility blockage	About 90%
Warranty	3-Year Limited Warranty

Our Verdict

For homeowners wanting a durable, effective sunshade that is easy to size and install, this red right triangle sail is a solid value: the high UV blockage, curved-edge design to prevent sagging, and customizable options make it a practical choice for patios, pools, and driveways. Be prepared to inspect or upgrade mounting hardware if you need heavy-duty anchors or improved rain protection.

Frequently Asked Questions

How is the size measured?
The sail is measured from corner to corner, not along the edge, which helps buyers plan anchor locations accurately.

Is it waterproof?
The fabric is slightly rainproof but not fully waterproof; it is designed primarily for shade, cooling, and light rain protection.

Does it include hardware?
Hardware is included, but customers report mixed experiences and some choose to purchase heavier-duty anchors for more secure installation.