Custom 18ft x 18ft x 25.5ft Sand Right Triangle Shade Sail - Heavy

In this review of the ColourTree custom size sand right triangle shade sail, the bottom line is practical: it is for homeowners and small businesses who need a durable, large sun shade that blocks UV while allowing airflow. The reviewer found the standout reason to buy is the heavyweight 190 GSM 100% virgin HDPE fabric treated with a UV stabilized compound, which delivered long-term color retention and strong resistance to sun damage during weeks of direct exposure. Installation is straightforward with proper hardware, and the sail performs especially well over patios, pools, and carports.

Key Features

• 190 GSM Virgin HDPE: Thick, non-recycled material gives a noticeably solid feel and holds shape under tension for reliable coverage.
• UV Stabilized Compound: The fabric resisted fading and drying in prolonged sun, improving longevity compared with recycled alternatives.
• 95% UV Blockage: Stops most harmful UV rays and reduces surface temperature under the canopy for more comfortable outdoor time.
• Breathable Woven Fabric: Allows air and water to pass through so rain does not pool and shaded areas stay ventilated.
• Reinforced Edges and D-rings: Double layered stitched seams and stainless steel D-rings provide secure attachment points that resist fraying.
• Three Year Limited Warranty: Warranty coverage provides added confidence under normal weather and usage conditions.

Who It's For

This shade sail is best for homeowners, landlords, and small commercial operators who want a large, durable sun shade for patios, swimming pools, balconies, or carports and who will pair the sail with proper hardware and mounting points. Its heavy 190 GSM construction and UV treatment mean it suits sunny climates and users who prioritize long-term color and fabric integrity.

It is not ideal for someone who expects to use the sail as a temporary, lightweight canopy to be frequently moved or reconfigured, or for installations without sturdy anchor points; the review advises buying proper shade sail hardware and cable separately for reliable performance.

Pros & Cons

Pros

• High quality 190 GSM virgin HDPE material feels sturdy and durable in use.
• Excellent sun protection with claimed 95% UV blockage that noticeably cools shaded areas.
• Breathable fabric prevents water pooling and performs well in wet weather.
• Reinforced seams and stainless steel D-rings make for secure, long-lasting mounts.

Cons

• Hardware kits are sold separately, so total installation cost is higher than the sail alone.
• Custom sizing requires careful measurement to ensure proper fit; some users noted sizing accuracy matters for corner installations.

Specifications

Shape	Right triangle
Size	18ft x 18ft x 25.5ft
Color	Sand
Material	190 GSM 100% virgin HDPE
UV Protection	95% UV blockage (breathable fabric)
Hardware	Stainless steel D-rings on corners (hardware sold separately)
Warranty	3 years limited

Our Verdict

The ColourTree 18ft x 18ft x 25.5ft sand right triangle shade sail is a solid choice for anyone needing durable, long-lasting sun protection over a patio or pool area; its heavy 190 GSM virgin HDPE and UV-stable treatment deliver value by resisting fading and fabric breakdown, though buyers should budget for proper mounting hardware and double-check measurements before ordering.

Frequently Asked Questions

Does the fabric allow rain to pass through?
Yes. The breathable woven HDPE lets water and air pass so water does not pool on the sail.

Are mounting cables and turnbuckles included?
No. Installation hardware kits and cable are sold separately and are required for secure installation.

How long is the warranty?
The sail comes with a 3 year limited warranty under normal weather and usage.