Right Triangle 13ft x 20ft x 23.9ft Blue Shade Sail - Heavy Duty UV

In this review the focus is on a large custom right triangle shade sail designed for heavy use outdoors. This ColourTree right triangle 13' x 20' x 23.9' Blue shade sail is for homeowners and small businesses who need broad, reliable UV protection and a durable fabric that stands up to intense sun exposure; the single biggest reason to buy is the thick 190 GSM virgin HDPE fabric that is laboratory tested for extended UV stability and long-term performance.

Key Features

• 190 GSM virgin HDPE: The thick, non-recycled fabric is designed for durability and resists tearing and abrasion better than recycled materials.
• UV stabilized compound: Laboratory UV testing up to 20000 hours shows the treatment helps prevent drying out and fading, extending usable life in sunny climates.
• 95% UV blockage: The woven fabric significantly reduces harmful UV and lowers temperature in the shaded area, useful for patios, pools and carports.
• Breathable mesh construction: Air and water pass through freely to avoid pooling during rain while still providing effective shade.
• Reinforced seams and stainless D-rings: Double layered stitched edges and heavy corner stitching keep the sail from fraying and make mounting points more reliable.
• Three year warranty: A limited warranty covers defects under normal weather and usage, giving additional confidence in the purchase.

Who It's For

This shade sail is best for homeowners, pool owners, and small commercial spaces in high-sun regions who need a large, shaped cover that performs season after season. The right triangle dimensions work particularly well for corner installations, patios, and asymmetrical spaces where rectangular sails would not fit cleanly.

It is not aimed at buyers looking for an inexpensive temporary cover or those who prefer a solid waterproof canopy; this is a breathable UV-blocking fabric designed to reduce heat and protect from sun rather than fully repel heavy wind-driven rain or serve as a permanent architectural roof.

Pros & Cons

Pros

• High-quality 190 GSM virgin HDPE provides noticeably better durability under strong sun compared to recycled alternatives.
• Blocks up to 95% of UV and reduces temperature beneath the sail, improving outdoor comfort.
• Reinforced seams and stainless steel D-rings make the sail sturdy and straightforward to anchor when using proper hardware.

Cons

• Installation hardware is sold separately, so additional expense and planning for proper mounting points are required.
• As a breathable mesh it does not provide complete waterproofing in heavy storms.

Specifications

Shape	Right triangle
Size	13' x 20' x 23.9'
Color	Blue
Material	190 GSM 100% virgin HDPE (UV stabilized)
UV Protection	Approximately 95% blockage
Corners	Stainless steel D-rings with heavy stitching
Warranty	3 years limited

Our Verdict

For anyone needing a durable, large right triangle shade sail that prioritizes UV protection and long-term resistance to sun damage, this 190 GSM virgin HDPE sail is a strong choice. It delivers good value when paired with proper hardware and installation, offering lasting shade, solid construction, and peace of mind with a three year warranty.

Frequently Asked Questions

Does this sail block most UV rays?
Yes, the woven fabric is rated to block about 95% of harmful UV to reduce sunlight and heat under the sail.

Is the material waterproof?
No, the breathable mesh allows water to pass through to prevent pooling; it reduces sun and heat but is not intended as a fully waterproof roof.

Are mounting accessories included?
No, installation hardware kits and cables are sold separately and are required for secure mounting.