ColourTree 17 ft x 20 ft Blue Sun Shade Sail Canopy - Heavy Duty UV

In this review the ColourTree 17' x 20' blue sun shade sail canopy is evaluated as a practical, heavy duty option for homeowners and small commercial spaces that need reliable UV protection without a permanent structure. The bottom line: it is best for people who want a large, breathable shade that blocks sunlight while remaining durable in outdoor conditions. The reviewer found the 190 GSM virgin HDPE fabric and UV stabilized compound give it a noticeably sturdy feel and long-term promise for sun-exposed patios, pools and carports.

Key Features

• 190 GSM virgin HDPE fabric: The thick, non-recycled material feels substantial and is designed to resist tearing and stretching under regular sun exposure.
• UV stabilized compound: Laboratory UV testing suggests improved resistance to fading and drying, which helps the sail keep its color and integrity longer outdoors.
• 95% UV blockage: The woven fabric cuts most harmful UV rays and noticeably reduces heat and glare in shaded areas for patios and pools.
• Breathable, water-shedding weave: Air and water pass through the fabric to prevent pooling, which reduces wind loading and water damage risk.
• Reinforced edges and stainless D-rings: Double-layer stitched hems and heavy stitching at corners keep the sail square and make attachment points robust.
• 3 year limited warranty: Coverage under normal weather and usage offers extra confidence in the product's expected lifespan.

Who It's For

This shade sail is aimed at homeowners, small businesses and property managers who need a cost-effective, non-permanent canopy for patios, pools, balconies or carports. It suits anyone who wants a large, breathable cover that still blocks most UV and lowers outdoor temperatures without the expense of a built structure.

People who need custom-mount hardware or an instant freestanding shelter should look elsewhere, since hardware kits are sold separately and proper anchoring (cables, rated fittings) is required for a secure installation. Those expecting a waterproof tarpaulin rather than a breathable shade should choose a different product.

Pros & Cons

Pros

• High-quality 190 GSM virgin material gives a durable, substantial feel and resists UV damage.
• Breathable weave with 95% UV blockage keeps shaded areas cooler and prevents pooling.
• Stitched reinforced seams and stainless D-rings make mounting practical and long-lasting.

Cons

• Installation hardware is not included, so buyers must purchase compatible cables or kits separately.
• The sail is not fully waterproof by design, so it will not create a dry roof under steady heavy rain.

Specifications

Size	17' x 20'
Material weight	190 GSM
Fabric type	100% virgin HDPE woven fabric
UV protection	Blocks 95% of UV
Attachments	Stainless steel D-rings at corners
Warranty	3 year limited warranty

Our Verdict

The ColourTree 17' x 20' blue shade sail is a well-built, value-oriented choice for anyone wanting strong UV protection and airflow over patios and pools. With thick 190 GSM virgin HDPE, reinforced edges and a three year warranty, it delivers long-term performance provided correct hardware and anchoring are used; it is best for those seeking a breathable shade rather than a waterproof canopy.

Frequently Asked Questions

Does the sail block UV effectively?
The woven fabric blocks about 95% of UV, reducing heat and sunlight in the shaded area.

Is the sail waterproof?
No, the fabric is breathable to allow water and air to pass through and will not create a fully dry roof in heavy rain.

Are mounting kits included?
No, installation hardware kits and cables are sold separately and high quality fittings are recommended for secure anchoring.