Amgo Custom Size 18ft x 21ft x 27.7ft Sand Beige Right Triangle Sun

Our review of this custom size right triangle sun shade sail finds it best for homeowners and small commercial spaces that need strong, breathable UV protection tailored to an irregular area. The single biggest reason to buy is the material performance: a heavy 200 GSM HDPE weave that blocks up to 95% of UV while remaining water and air permeable, producing a noticeably cooler shaded spot without trapping heat. It is an order-to-make canopy designed for a precise D-ring-to-D-ring fit and includes reinforced edges and stainless steel D-rings for long-term use.

Key Features

• 95% sun protection: The 200 GSM HDPE fabric blocks up to 95% of harmful UV rays for safer outdoor time.
• Temperature reduction: The shade sail lowers ambient temperature by up to 15 degrees compared to unshaded areas to make patios and play areas more comfortable.
• Water and air permeable: The open weave sheds some water and allows airflow so heat and moisture do not build up under the canopy.
• Customizable fit: Made to measure from D-ring to D-ring so the sail matches nonstandard spaces and mounting layouts.
• Durable construction: Reinforced edges, double-layer stitching and stainless steel D-rings give commercial-grade durability and a 3-year assurance.
• Flexible installation: Can be mounted to trees, roofs, walls or poles and works with common mounting hardware kits for varied sites.

Who It's For

This shade sail is ideal for homeowners, small businesses or community spaces that need a tailored shade solution for an angled or triangular area, such as patios, play areas, chicken runs or storefront awnings. Installers who value a breathable fabric that still blocks most UV and reduces surface temperatures will appreciate the 200 GSM construction and reinforced hardware.

Those who need instant, off-the-shelf sizing or full waterproof coverage should look elsewhere; while the sail is water and air permeable and sturdy, it is not a rigid or fully waterproof canopy. Also measure carefully, since customers noted some sizes run smaller than expected and the product is made to measured D-ring distances.

Pros & Cons

Pros

• High UV blockage and real temperature reduction make outdoor spaces more usable in hot weather.
• Strong construction with double stitching and stainless steel D-rings resists fraying and wear.
• Made-to-measure sizing provides a neater fit for irregular mounting points.
• Breathable design prevents heat buildup under the shade while allowing some water runoff.

Cons

• Some buyers report the sail can come up smaller than expected, so precise measurement is essential.
• Not fully waterproof, so it will not provide total rain protection in heavy storms.

Specifications

Shape	Right triangle
Custom size	18' x 21' x 27.7' (made to order)
Material	200 GSM HDPE
UV blockage	Up to 95%
Permeability	Water and air permeable
Hardware	Stainless steel D-rings, reinforced edges
Warranty/Assurance	3-year assurance

Our Verdict

This custom right triangle shade sail is a smart pick for anyone who needs a tailored, breathable canopy that prioritizes UV protection and durability. With heavy 200 GSM fabric, reinforced fittings and noticeable temperature reduction it offers strong value for patios, play areas and small commercial uses, provided you measure carefully and accept that it is not fully waterproof.

Frequently Asked Questions

Is this sail fully waterproof?
Answer. No, the 200 GSM HDPE weave is water and air permeable, so it sheds some water but is not a fully waterproof tarp.

How should I measure for a custom fit?
Answer. Measure from D-ring to D-ring at each corner; the sail is made to those exact distances so accuracy is important.

Will it reduce heat under the shade?
Answer. Yes, the fabric and design can reduce temperatures by up to about 15 degrees versus unshaded areas.