Amgo Custom Size 21 ft Triangle Sun Shade Sail - 95% UV Protection

In this review of the Amgo custom size 21' x 21' x 21' triangle sun shade sail, the bottom line is simple: it is for homeowners and small commercial spaces that need strong sun protection and a custom fit. The reviewer found the sail's biggest advantage to be its combination of high UV blockage and durable construction, which delivers cooler shaded areas and flexible mounting options. For anyone seeking a tailored shade solution with solid hardware and a commercial standard feel, this sail is worth considering.

Key Features

• 95% Sun Protection: The 200 GSM HDPE fabric blocks up to 95% of UV rays to reduce sun exposure in patios or play areas.
• Temperature Reduction: The sail lowers ambient temperature by as much as 15 degrees compared to unshaded spots, making outdoor time more comfortable.
• Customizable Fit: Measured from D-ring to D-ring so the sail can be ordered to fit irregular spaces or adjusted for straighter edges on request.
• Durable Construction: Reinforced edges, double-layer stitching and stainless steel D-rings improve longevity under regular outdoor use.
• Easy Installation: The design allows attachment to trees, roofs, walls or poles and works with standard mounting hardware kits for flexible placement.
• Commercial Standard: Built to a commercial standard and offered with a 3 year assurance for added confidence in use.

Who It's For

This shade sail suits homeowners with patios, decks or poolside seating who want a tailored triangular canopy that reduces heat and sun exposure. It is also appropriate for small commercial outdoor areas such as cafes or playgrounds that need a neat, weather-permeable shade solution with robust hardware.

People who want a ready-to-install pop-up umbrella or a rigid waterproof canopy should look elsewhere, since this product is a water and air permeable fabric sail rather than a sealed waterproof awning. Those who need a permanent, fully waterproof structure may prefer a solid-roof option.

Pros & Cons

Pros

• High UV blocking fabric keeps shaded areas noticeably cooler and safer in strong sun.
• Custom sizing from D-ring to D-ring gives a tailored fit for awkward or unique spaces.
• Quality details like stainless steel D-rings and double stitching improve durability and appearance.
• Installation is flexible and can be adapted to trees, walls or poles using common hardware kits.

Cons

• Durability reports are mixed over long-term sun exposure, so heavy UV environments may require periodic replacement.
• Permeable fabric means it is not fully waterproof, so it will not create a dry sheltered area in heavy rain.

Specifications

Brand	Amgo
Size	21' x 21' x 21' triangle
Material	200 GSM HDPE
UV Blockage	Up to 95% (UPF50+)
Performance	Reduces temperature by up to 15 degrees
Hardware	Stainless steel D-rings, reinforced edges, double stitching
Assurance	3 year assurance included

Our Verdict

The Amgo 21' triangle shade sail is a practical, value-minded choice for anyone needing strong UV protection and a customizable canopy shape. It balances effective sun blockage, temperature reduction and robust hardware at a reasonable cost, making it a good option for patios, poolsides and small commercial spaces, provided users accept that the fabric is permeable and may require replacement after extended intense sun exposure.

Frequently Asked Questions

Is the sail waterproof?
Answer. No, the HDPE fabric is water and air permeable, so it will provide shade but not full rain protection.

How should I measure for a custom size?
Answer. Measure from D-ring to D-ring for each side to ensure the sail is made to the correct shape and fit for your mounting points.

How durable is the sail in constant sun?
Answer. Construction is reinforced with stainless D-rings and double stitching and comes with a 3 year assurance, though customer experiences with long-term UV exposure are mixed.