20ft x 21ft x 29ft Sand Beige Right Triangle Sun Shade Sail - UV Block

In this review of the ColourTree custom size sun shade sail, the bottom line is simple: if you need a large right triangle canopy that blocks sun reliably and resists fading, this 20' x 21' x 29' sand beige sail is built for that purpose. The reviewer found it especially suited to patios, pools and carports where strong UV exposure and wind make durability essential. The sail's claim of 190 GSM virgin HDPE and laboratory UV testing is the single biggest reason to consider it, since it promises longer life and better protection than thinner, recycled alternatives.

Key Features

• 190 GSM virgin HDPE: Thick, non-recycled fabric feels substantially heavier and resists tearing compared with typical lightweight sails.
• UV stabilized compound: Fabric treated to resist drying out and fading after extended sun exposure, which should extend usable life.
• 95% UV blockage: Dense woven mesh blocks the majority of harmful UV and helps reduce temperature in the shaded area for more comfortable outdoor use.
• Breathable woven design: Allows air and water to pass through so rain does not pool and ventilation reduces wind strain on the material.
• Reinforced edges and stainless rings: Double layered stitched seams and heavy stitching at corners protect against fraying and provide secure D-ring attachment points.
• Three year limited warranty: Basic warranty gives extra reassurance under normal weather and usage conditions.

Who It's For

This shade sail is a good fit for homeowners and small commercial operators who need a large, triangular canopy over patios, pools, carports or seating areas and who face intense sun exposure. People who prioritize UV protection, long-term color retention and a breathable fabric that avoids water pooling will find the sail especially useful.

It is less suitable for those who expect to install without any hardware planning or who require a waterproof canopy; installation hardware and cables are sold separately and the mesh fabric is breathable rather than waterproof. If you need complete rain protection or want a lightweight temporary sunshade, look for a different style.

Pros & Cons

Pros

• Heavy 190 GSM virgin HDPE feels durable and stands up well in strong sun.
• Blocks about 95% of UV, noticeably lowering sunlight and heat in the shaded area.
• Reinforced seams and stainless steel D-rings give secure, long-lasting attachment points.
• Breathable weave prevents water pooling and improves airflow under the canopy.

Cons

• Installation requires separate hardware and proper cables; ropes are not included and nylon ropes are not recommended.
• Mesh fabric is not waterproof, so it will not provide full rain protection.

Specifications

Our Verdict

The ColourTree 20' x 21' x 29' sand beige right triangle shade sail is a solid choice for anyone who wants a durable, high-coverage canopy that excels at UV protection and color retention. It delivers good value for outdoor living areas where long-term sun exposure is a concern, provided the buyer arranges proper hardware and accepts that the mesh is breathable rather than waterproof.

Frequently Asked Questions

Does this sail block a lot of UV?
Yes, the woven fabric is designed to block approximately 95% of harmful UV rays.

Is hardware included for installation?
No, installation hardware and cables are sold separately and quality cables are recommended for best performance.

Will water pool on the sail?
No, the breathable woven HDPE allows water to pass through so pooling is not expected.