ColourTree Custom Size 18ft x 18ft x 25.5ft Right Triangle Sun Shade

In this review of the ColourTree 18' x 18' x 25.5' right triangle shade sail, the bottom line is simple: it is aimed at homeowners and small commercial spaces that need durable, high-coverage UV protection. The single biggest reason to buy is the thick 190 GSM virgin HDPE construction that underwent extensive UV testing, delivering long-lasting sun resistance and reduced fading. Our review finds it especially useful where sustained sun exposure and breathable coverage are required, such as patios, poolsides and carports.

Key Features

• 190 GSM virgin HDPE: Thick, non-recycled material offers stronger tear resistance and longer life than thinner recycled alternatives.
• UV stabilized compound: Fabric treatment prevents drying, tearing and fading so the sail maintains appearance and strength under prolonged sun exposure.
• 95% UV blockage: The woven fabric blocks the majority of harmful UV and noticeably reduces temperature in shaded areas for more comfortable outdoor use.
• Breathable weave: Air and water pass through the mesh, preventing water pooling and reducing wind load compared with solid canopies.
• Reinforced stitching and D-rings: Double layered seams and stainless steel D-rings at corners improve attachment durability and resist fraying.
• Three year warranty: A limited warranty covers normal weather and usage, offering added confidence in material longevity.

Who It's For

The ColourTree right triangle shade sail is best for homeowners, pool owners and small commercial venues that need a robust, breathable shade solution that stands up to strong sun and occasional wind. It suits patios, balconies, carports and true 90 corner installations where a triangular panel delivers the right coverage without blocking airflow.

It is less appropriate for buyers who need a rigid waterproof canopy or those wanting a plug-and-play kit; installation requires separate hardware and proper anchoring points, and nylon ropes are not recommended. For fully waterproof or freestanding frame systems, consider a different product type.

Pros & Cons

Pros

• High quality 190 GSM virgin HDPE fabric provides durability and resistance to UV damage.
• Blocks up to 95% of UV while remaining breathable so shaded areas stay cooler and dry quickly after rain.
• Sturdy construction with reinforced seams and stainless steel D-rings for secure anchoring.
• Three year limited warranty adds protection under normal use.

Cons

• Hardware kits and cables are sold separately, so buyers must plan for additional purchases for proper installation.
• Not waterproof by design; it allows water through and is intended for shade rather than rain protection.

Specifications

Shape	Right triangle
Size	18' x 18' x 25.5'
Material	100% virgin HDPE, 190 GSM
UV Protection	Up to 95% UV blockage
Edges & Corners	Double layered reinforced seams, stainless steel D-rings
Breathability	Woven mesh allows air and water passage
Warranty	3 years limited

Our Verdict

The ColourTree 18' x 18' x 25.5' right triangle shade sail is a smart choice for anyone needing long-lasting sun protection with good airflow and minimal maintenance. Its heavy duty 190 GSM virgin HDPE fabric and reinforced fittings make it a practical, value-driven option for patios, pools and carports, provided buyers account for separate installation hardware and accept that the sail is breathable rather than waterproof.

Frequently Asked Questions

Is hardware included?
Installation hardware kits and cables are sold separately; each D-ring requires a cable rope and high quality hardware is recommended.

Will it block rain?
The woven fabric is breathable and allows water to pass through, so it reduces sun and heat but is not intended as a waterproof canopy.

How durable is the fabric?
Made from 190 GSM virgin HDPE and treated with a UV stabilized compound, the fabric was lab-tested and engineered to resist fading and tearing under prolonged sun exposure.