ColourTree Custom Size Right Triangle Shade Sail 15ft x 21ft x 25.8ft

Our review of this ColourTree custom size sun shade sail finds it best for homeowners and small commercial spaces that need a large, breathable, UV-blocking canopy without welded seams or flimsy recycled fabric. The single biggest reason to buy is the use of 190 GSM 100% virgin HDPE treated with a UV stabilized compound, which the maker says was lab-tested and proven more durable than recycled alternatives; that thicker material and reinforced construction translate to a shade that feels substantial and blocks sunlight effectively while allowing air and water to pass through.

Key Features

• 190 GSM virgin HDPE: Thicker, non-recycled material gives the sail a sturdier feel and improved longevity in sun-exposed installations.
• UV stabilized compound: Fabric treated to resist drying, tearing and fading so the canopy keeps its strength and appearance longer.
• 95% UV blockage: The woven mesh significantly reduces UV and lowers temperature under the canopy for patios, pools and carports.
• Breathable woven fabric: Allows air and rainwater to pass through, preventing water pooling and reducing uplift in windy conditions.
• Reinforced edges and D-rings: Double layered stitched seams and stainless steel D-rings provide reliable attachment points for proper tensioning.
• Three year warranty: Limited warranty gives some assurance of coverage under normal weather and use.

Who It's For

This shade sail suits homeowners, pool owners and small businesses seeking a heavy duty, UV-blocking canopy that can be custom ordered in a large right-triangle size. It is particularly good for applications where breathability matters, like over above-ground pools, patios and carports where water runoff and airflow should not be obstructed.

People who need a do-it-yourself kit should note that installation hardware is sold separately and each D-ring requires a cable rope; those looking for a fully bundled solution with hardware included or who cannot anchor to sturdy posts or walls may want a different product or a professional installation service.

Pros & Cons

Pros

• High-density 190 GSM virgin HDPE offers a robust feel and claimed superior UV durability.
• Blocks up to 95% of UV while remaining breathable to avoid pooling water.
• Reinforced seams and stainless steel D-rings make for secure mounting when used with proper hardware.

Cons

• Installation hardware is not included and improper ropes can fail, so buyers must purchase recommended cables or kits separately.
• Some customers reported mixed durability experiences, so extreme weather exposure may still risk damage over time.

Specifications

Shape	Right triangle
Size	15' x 21' x 25.8'
Material	190 GSM 100% virgin HDPE mesh
UV protection	Blocks 95% of UV
Hardware	Stainless steel D-rings on corners (hardware sold separately)
Breathability	Permeable woven fabric, allows air and water through
Warranty	3 years limited

Our Verdict

The ColourTree 15' x 21' x 25.8' right triangle shade sail is a practical choice for anyone who wants a heavy duty, breathable canopy that blocks most UV and resists fading better than recycled alternatives; it represents good value if you supply proper installation hardware and anchor points. It is recommended for patios, pools and carports where airflow and water drainage matter, but buyers should budget for recommended cables or a hardware kit and accept that longevity can vary with local weather.

Frequently Asked Questions

Does the sail include installation hardware?
No. Installation hardware kits and cable ropes are sold separately; each D-ring requires one cable rope and nylon ropes are not recommended.

How much UV protection does it provide?
The woven fabric is rated to block approximately 95% of harmful UV, reducing sun exposure and temperature beneath the sail.

Is the fabric recycled?
No. The sail is made from 100% virgin HDPE at 190 GSM and treated with a UV stabilized compound for improved durability.