11ft x 21ft x 23.7ft Brown Right Triangle Sun Shade Sail - Heavy Duty

In this review we look at a custom size right triangle sun shade sail made from thick 190 GSM virgin HDPE fabric and designed for long-term outdoor use. The bottom line: this sail is for homeowners and small commercial spaces who need a durable, breathable shade that blocks intense sun and reduces temperature under the canopy. It stands out because of the 100% virgin, UV stabilized compound that laboratory testing showed to be far more durable than recycled material, making it a practical buy for sunny climates.

Key Features

• 190 GSM virgin HDPE: The thick, non-recycled fabric delivers higher durability under constant sun exposure and resists drying out and tearing.
• UV stabilized compound: The material was UV treated to slow fading and degradation, extending the useful life of the sail in harsh sunlight.
• 95% UV blockage: The tightly woven fabric blocks most harmful UV rays and helps lower surface temperatures under the shade.
• Breathable woven design: Air and rain pass through the mesh to prevent water pooling while maintaining ventilation beneath the sail.
• Reinforced edges and stainless D-rings: Double-layer stitched seams and heavy corner stitching keep the sail square and the D-rings secure during installation.
• 3 year limited warranty: Coverage under normal weather and use gives added confidence in material performance.

Who It's For

This right triangle shade sail is best for homeowners with patios, pools, balconies, carports or outdoor seating areas in sunny regions who need a large, fixed-shape shade. It also suits small commercial settings such as cafe patios or play areas where durable, breathable UV protection is required.

Those who should look elsewhere include buyers who need a temporary or instant pop-up shelter, since hardware and cables are sold separately and a permanent attachment to poles, trees, or walls is expected. Also, if a fully waterproof canopy is required, this breathable mesh is not designed as a waterproof tarp.

Pros & Cons

Pros

• High quality 100% virgin HDPE fabric resists sun damage and lasts longer than recycled alternatives.
• Blocks 95% of UV and reduces heat beneath the sail for comfortable outdoor use.
• Breathable weave prevents water pooling and allows airflow for cooler shade.
• Reinforced stitched edges and stainless steel D-rings simplify secure installation.

Cons

• Installation hardware and cables are not included and must be purchased separately for proper mounting.
• As a breathable mesh, it is not fully waterproof and will not provide full rain protection.

Specifications

Shape	Right triangle
Size	11 ft x 21 ft x 23.7 ft
Color	Brown
Material	190 GSM 100% virgin HDPE mesh
UV Blockage	95%
Hardware	Stainless steel D-rings on corners (installation kit sold separately)
Warranty	3 years limited

Our Verdict

This heavy duty right triangle sun shade sail is a smart choice for anyone who needs reliable UV protection and long-term durability in sunny climates. The 190 GSM virgin HDPE and UV stabilized compound give it better longevity than recycled alternatives, while the breathable weave prevents pooling and keeps shaded areas comfortable, making it good value for patios and poolside use.

Frequently Asked Questions

Does this sail block UV effectively?
Yes, the fabric blocks about 95% of harmful UV, reducing sun exposure and temperature beneath the sail.

Is installation hardware included?
No, cables and hardware kits are sold separately; each D-ring requires a cable rope and proper fittings for secure mounting.

Is the fabric waterproof?
No, the woven HDPE is breathable to allow water and air through, so it prevents pooling but is not fully waterproof.