13 ft x 21 ft x 24.7 ft White Right Triangle Sun Shade Sail - Heavy

In this review of the 13' x 21' x 24.7' white right triangle sun shade sail, the bottom line is simple: it suits anyone who needs a large, breathable canopy that blocks most UV while staying ventilated. Our review finds the sail best for patios, pools and carports where long-lasting coverage matters; its standout is the thick 190 GSM virgin HDPE fabric treated with a UV stabilized compound, which aims to keep color and integrity longer than recycled alternatives.

Key Features

• 190 GSM Virgin HDPE: The thick, non-recycled fabric provides a sturdy feel and is designed for stronger resistance to sun exposure compared with recycled material.
• Extensive UV Testing: Laboratory UV exposure testing was used to validate longer durability in sunlight, helping the sail resist fading and drying out.
• 95% UV Blockage: The tightly woven mesh blocks the majority of harmful UV rays while reducing ambient temperature under the sail.
• Breathable, Water-Friendly Weave: The woven fabric lets air and water pass through to avoid pooling and reduce wind load on the structure.
• Reinforced Construction: Double-layer stitched seams and stainless steel D-rings at each corner improve strength where mounting hardware attaches.
• 3 Year Limited Warranty: A manufacturer warranty covers normal weather and usage for extra buyer reassurance.

Who It's For

This shade sail is ideal for homeowners with a large patio, above-ground or in-ground pool, carport, or backyard seating area who want high UV protection and airflow. Installers who prefer robust material will appreciate the heavy 190 GSM virgin HDPE and reinforced corners for a cleaner, longer-lasting installation.

It is less suited to buyers who need a quick temporary cover or who cannot attach to solid anchor points; installation requires separate hardware and cable rope, and trees or poles must be available or added. Those seeking the absolute cheapest short-term solution may want a lighter-weight alternative.

Pros & Cons

Pros

• High-quality 190 GSM virgin material feels durable and resists UV damage longer than recycled fabric.
• Blocks up to 95% of UV while remaining breathable to avoid heat buildup and water pooling.
• Reinforced seams and stainless steel D-rings make mounting more secure when paired with proper hardware.
• Includes a 3 year limited warranty for normal use, giving extra peace of mind.

Cons

• Customers report mixed durability experiences, with some noting ripping under heavy conditions, so real-world longevity can vary by installation and use.
• Hardware and cable rope are sold separately, so total cost and effort to install may be higher than expected.

Specifications

Shape	Right triangle
Dimensions	13' x 21' x 24.7'
Color	White
Material	190 GSM 100% virgin HDPE mesh
UV Blockage	Approximately 95%
Corners	Stainless steel D-rings with reinforced stitching
Warranty	3 year limited warranty

Our Verdict

The 13' x 21' x 24.7' white right triangle shade sail is a solid choice for people who need large, breathable UV protection and prefer thicker, virgin HDPE fabric for potential longer life. When paired with proper hardware and installation, it delivers excellent sun blockage and airflow, making it good value for outdoor living spaces where durability matters.

Frequently Asked Questions

Does this sail block the sun effectively?
Yes. The woven fabric is rated to block about 95% of UV, which significantly reduces direct sunlight and heat beneath the sail.

Is mounting hardware included?
No. Installation hardware kits and cable rope are required but sold separately; high-quality hardware is recommended for best results.

How long will the material last outdoors?
The sail uses 190 GSM virgin HDPE treated with UV stabilizers and carries a 3 year limited warranty, but actual lifespan depends on installation, weather exposure and maintenance.