ColourTree Custom Size 11ft x 21ft x 23.7ft Blue Right Triangle Shade

In this review of the ColourTree custom size right triangle shade sail, the bottom line is simple: it is best for homeowners and light commercial users who need a large, durable shade that blocks sunlight without trapping heat. The reviewer found the biggest reason to buy is the 190 GSM 100% virgin HDPE fabric treated with a UV stabilized compound, which offers noticeably stronger UV resistance and a thicker feel than typical recycled sails. Installation requires separate hardware, but once secured the sail delivers consistent shade and breathability over patios, pools or carports.

Key Features

• 190 GSM virgin HDPE: A thicker, non-recycled fabric that feels sturdier and is designed to resist tearing and premature breakdown compared to recycled material.
• UV stabilized compound: The material was lab tested for long sun exposure and is treated to resist drying out and fading for longer outdoor life.
• 95% UV blockage: The woven fabric significantly cuts harmful UV and lowers direct sun and heat in the shaded area for more comfortable outdoor use.
• Breathable construction: The weave allows air and water to pass through so there is no pooling after rain and the area remains ventilated.
• Reinforced edges and stainless D-rings: Double layered stitched seams and extra strong stitching at corners improve shape retention and make anchoring more secure.
• Three year limited warranty: Coverage under normal weather and use provides some protection against defects during the early years of outdoor exposure.

Who It's For

This shade sail is a solid choice for people who want a large, customized triangular sail for patios, above-ground pools, balconies or carports and who value thicker material and UV testing. It suits homeowners and small commercial spaces that have sturdy anchor points like poles, walls or mature trees and who are willing to buy separate hardware for installation.

Those who should look elsewhere include buyers seeking a complete hardware-and-sail kit in one purchase or anyone needing an ultra-lightweight temporary cover; the sail is designed for permanence and requires proper cables and fittings for best performance.

Pros & Cons

Pros

• High quality 190 GSM virgin HDPE material offers a robust feel and improved UV durability.
• Very good sun protection and breathability, reducing temperature without trapping moisture.
• Reinforced seams and stainless steel D-rings make installation secure when paired with proper hardware.
• Backed by a 3 year limited warranty for peace of mind under normal conditions.

Cons

• Hardware and cable ropes are sold separately and must be chosen carefully for a reliable installation.
• Some customers reported mixed long-term durability, so extreme weather or improper anchors can shorten lifespan.

Specifications

Product type	Right triangle shade sail
Size	11' x 21' x 23.7'
Material	190 GSM 100% virgin HDPE mesh
UV protection	Blocks up to 95% of UV
Edges and fittings	Double layered reinforced seams with stainless steel D-rings
Warranty	3 year limited warranty

Our Verdict

The ColourTree 11' x 21' x 23.7' right triangle shade sail is a good-value option for anyone who needs a robust, breathable sun cover with strong UV blocking. It is worth buying if you pair it with proper hardware and want a thicker, UV-stabilized fabric that is intended for longer outdoor use.

Frequently Asked Questions

Do I get mounting hardware with the sail?
Installation hardware kits are sold separately; each D-ring requires a cable rope and quality fittings are recommended for secure anchoring.

How much UV protection does the fabric provide?
The woven 190 GSM virgin HDPE fabric is designed to block up to 95% of harmful UV while allowing airflow.

Is the sail suitable for rainy weather?
Yes, the breathable mesh allows water to pass through so there is no pooling, but strong storms may still stress attachments so remove or secure it in severe weather.