Right Triangle 18ft x 18ft x 25.5ft White Sun Shade Sail - UPF50

In this review the right triangle ColourTree sun shade sail is evaluated for homeowners and small commercial spaces that need reliable UV protection and a durable fabric option. The bottom line: this 18' x 18' x 25.5' white shade sail stands out for its thick 190 GSM virgin HDPE material and proven UV stability, making it a strong choice for patios, pools, and carports where long-term sun exposure and heat reduction matter most.

Key Features

• 190 GSM virgin HDPE: A heavier, non-recycled fabric that resists tearing and keeps shape under sustained sun exposure.
• UV stabilized compound: Lab-tested for 20,000 hours to reduce fading and drying out, extending usable lifespan compared with recycled materials.
• 95% UV blockage: Significantly reduces harmful UV penetration and lowers ambient temperature beneath the sail in summer months.
• Breathable woven fabric: Allows air and water to pass through to prevent pooling while maintaining shade and airflow.
• Reinforced seams and stainless D-rings: Double layered edges and heavy stitching secure corners and resist fraying under tension.
• Three year limited warranty: Coverage for normal weather and use gives extra assurance for longer installations.

Who It's For

This shade sail is well suited to homeowners, small businesses, and property managers who want a heavy-duty, UV-resistant canopy for areas like patios, swimming pools, balconies, or carports. The right triangle shape is especially useful in tight or angled spaces where a rectangular sail would not fit.

People who need a full hardware kit included should look elsewhere, since installation hardware is sold separately and proper cable and fittings are required. Also, those seeking a fully waterproof canopy rather than a breathable shade should consider a different material type.

Pros & Cons

Pros

• Thick 190 GSM virgin HDPE fabric feels robust and durable against sun damage.
• High UV blockage keeps shaded areas noticeably cooler and protects surfaces and skin.
• Reinforced seams and stainless D-rings simplify a secure installation when paired with proper hardware.
• Breathable weave prevents water pooling after rain and improves airflow under the sail.

Cons

• Hardware and cables are not included, so buyers must purchase recommended fittings separately for safest installation.
• As a woven fabric, it is not fully waterproof - it sheds sun and reduces heat rather than creating a sealed rain barrier.

Specifications

Brand	ColourTree
Shape	Right triangle
Size	18' x 18' x 25.5'
Material weight	190 GSM
Fabric type	100% virgin HDPE, UV stabilized
UV protection	Blocks 95% of UV
Warranty	3 years limited

Our Verdict

The ColourTree right triangle 18' x 18' x 25.5' white shade sail is a practical, value-focused choice for those who need durable UV protection and breathable coverage. Its thick virgin HDPE, reinforced construction, and high UV blockage make it a smart buy for patios, pools, and carports when paired with proper installation hardware.

Frequently Asked Questions

Is the shade sail waterproof?
The woven HDPE fabric is breathable and allows water to pass through, so it is not fully waterproof but prevents pooling.

Does the package include installation hardware?
No, hardware kits and cables are sold separately; use recommended marine-grade cable or the ColourTree hardware for best results.

How much UV protection does it provide?
The fabric is rated to block about 95% of harmful UV, reducing sunlight and heat in shaded areas.