ColourTree 20ft x 21ft Grey Sun Shade Sail Canopy - Heavy Duty UPF50

In this review the ColourTree 20' x 21' grey sun shade sail is judged primarily on durability and sun protection for outdoor living spaces. It is aimed at homeowners and small commercial spaces who need a large, breathable canopy that blocks sun and reduces heat. The single biggest reason to consider this sail is its 190 GSM 100% virgin HDPE fabric and UV stabilized compound, which the manufacturer says was lab-tested for extended life; that focus on material quality makes it a practical pick for busy patios, poolsides, and carports.

Key Features

• 190 GSM virgin HDPE: Thicker, non-recycled fabric offers greater resistance to sunlight degradation compared to recycled alternatives, helping the sail last longer in direct sun.
• UV stabilized compound: The fabric treatment reduces drying, tearing and fading so the canopy maintains strength and appearance under prolonged UV exposure.
• 95% UV blockage: Blocks most harmful UV rays and noticeably reduces temperature in the shaded area, making patios and poolside seating more comfortable.
• Breathable woven construction: Air and water pass through the fabric to prevent pooling after rain while still providing effective shade and ventilation.
• Reinforced edges and stainless D-rings: Double layered stitched seams and heavy stitching at corners improve load distribution and make mounting to hardware more secure.
• Three year limited warranty: Basic warranty provides some reassurance under normal weather and usage for typical residential or light commercial settings.

Who It's For

The ColourTree 20' x 21' sail is best for homeowners with patios, balconies, carports or pool areas who want a large shade solution that prioritizes UV protection and airflow. It fits buyers who value thicker, virgin HDPE material and reinforced construction for longer outdoor performance.

It is less appropriate for buyers seeking guaranteed stormproof installation or for those who want a fully waterproof canopy; because the fabric is breathable it allows water through rather than shedding heavy rain. Also, people who want pre-attached hardware should plan to buy a separate kit; installation requires suitable cables and fittings sold separately.

Pros & Cons

Pros

• High-density 190 GSM virgin fabric feels robust and is engineered to resist UV damage.
• Breathable weave blocks 95% of UV while reducing heat beneath the canopy.
• Well-stitched edges and stainless steel D-rings make mounting straightforward with proper hardware.
• Three year limited warranty offers an added layer of confidence for typical use.

Cons

• Some customers report mixed durability in extreme wind conditions, so heavy gales may require removal or stronger installation hardware.
• Hardware kits are sold separately, so total project cost is higher than the sail price alone.

Specifications

Size	20 ft x 21 ft
Material	190 GSM 100% virgin HDPE
UV Protection	Approx. 95% UV blockage (UPF50)
Construction	Double layered reinforced stitched seams with stainless steel D-rings
Breathability	Breathable woven fabric allows air and water passage
Warranty	3 year limited warranty

Our Verdict

The ColourTree 20' x 21' grey sun shade sail is a sensible value for buyers who need extensive UV protection and prefer thicker, virgin HDPE fabric for longer outdoor life. It is a practical choice for patios, pools and carports where breathability and strong seams matter, though buyers should budget for a quality hardware kit and consider removal in severe wind to protect the sail.

Frequently Asked Questions

Does this sail block most UV rays?
Yes, the fabric is designed to block about 95% of harmful UV and is treated with a UV stabilized compound.

Is the fabric waterproof?
No, the woven HDPE is breathable so water will pass through rather than pool on the canopy.

Does it include mounting hardware?
No, D-rings are attached to the sail but cables and hardware kits are sold separately and a proper kit is recommended for best results.