ColourTree Custom Size Right Triangle Shade Sail 16ft x 21ft x 26.4ft

In this review of the ColourTree custom size right triangle shade sail, the bottom line is simple: this is a heavy duty, UV-tested canopy for anyone needing reliable sun protection for patios, pools, carports or balconies. The sail's biggest selling point is its 190 GSM 100% virgin HDPE fabric treated with a UV stabilized compound, which the reviewer found to deliver sturdy coverage and long-term resistance to fading and drying under strong sun. Installation requires separate hardware, but once mounted the sail provides solid shading and breathability.

Key Features

• 190 GSM virgin HDPE: Thick, non-recycled fabric gives a robust feel and resists tearing better than thinner alternatives.
• UV stabilized compound: Laboratory UV testing supports longer life outdoors and reduces fading and material breakdown.
• 95% UV blockage: The dense woven fabric significantly lowers UV exposure and reduces temperature in shaded areas.
• Breathable woven construction: Allows water and air to pass through so rain does not pool and heat dissipates.
• Reinforced edges and stainless D-rings: Double layered stitched seams and heavy stitching at corners keep the sail square and securely anchored.
• 3 year limited warranty: Coverage under normal weather and usage provides buyer reassurance for residential and light commercial use.

Who It's For

This shade sail suits homeowners, renters with permission to mount hardware, and small commercial spaces that need large, durable shade coverage without a rigid structure. It is particularly well matched to sunny climates where UV degradation is a primary concern, since the virgin HDPE and UV treatment are designed for long-term exposure.

Those who want an all-in-one kit should look elsewhere, because installation hardware and cables are sold separately and must be chosen correctly; also customers seeking decorative, lightweight fabric rather than a heavy-duty sunblock may prefer a different style.

Pros & Cons

Pros

• Excellent durability from 190 GSM virgin HDPE fabric and UV stabilized compound.
• High UV protection that visibly lowers sunlight and temperature beneath the sail.
• Breathable material prevents water pooling and reduces wind stress compared with solid covers.
• Reinforced seams and stainless steel D-rings make for secure mounting when paired with proper hardware.

Cons

• Installation requires separate hardware and cable rope; buyer must source the recommended components for best results.
• Color and fit are custom to order, so returns or adjustments can be more complex than off-the-shelf sizes.

Specifications

Shape	Right triangle
Size	16 ft x 21 ft x 26.4 ft
Material weight	190 GSM
Fabric type	100% virgin HDPE, UV stabilized
UV protection	Blocks up to 95% of UV
Edge construction	Double layered reinforced stitched seams
Warranty	3 years limited

Our Verdict

The ColourTree 16 ft x 21 ft x 26.4 ft right triangle shade sail is a practical, durable choice for anyone who needs substantial UV protection and long-term performance. With heavy 190 GSM virgin HDPE and reinforced hardware points, it represents good value when paired with the correct installation kit, and is especially suited to intense sun environments where longevity matters.

Frequently Asked Questions

Does the sail come with installation hardware?
No, installation hardware kits and cable rope are sold separately and must be purchased to hang the sail properly.

How much UV protection does the fabric provide?
The woven fabric is rated to block up to 95% of harmful UV, which reduces sunlight and temperature beneath the canopy.

Is the material resistant to fading and tearing?
Yes, the 100% virgin HDPE is UV stabilized and laboratory tested for extended durability compared to recycled material.