Custom Size 18ft x 20ft x 26.9ft Right Triangle Shade Sail - 95% UV

In this review the custom size right triangle shade sail is examined for people who need a tailored canopy for patios, gardens, chicken runs or commercial outdoor areas; the single biggest reason to buy is its combination of strong sun protection and customizable fit. The reviewer found the 200 GSM HDPE fabric blocks up to 95% of UV, cuts perceived temperature by as much as 15 degrees, and arrives ready to mount with reinforced edges and stainless steel D-rings. It is a practical choice when standard sails do not match the available anchor points.

Key Features

• 95% Sun Protection: The 200 GSM HDPE material blocks up to 95% of harmful UV rays, reducing direct sun exposure for people or animals beneath it.
• Temperature Reduction: The shade sail lowers ambient temperature in shaded areas by up to 15 degrees compared to unshaded spots, making outdoor spaces noticeably cooler.
• Custom Size to Fit: The sail is made to order with measurements taken D-ring to D-ring so you can match irregular anchor layouts and achieve a tailored fit.
• Durable Construction: Reinforced edges, double-layer stitching and stainless steel D-rings provide long-term durability for seasonal use and wind exposure.
• Water and Air Permeable: The breathable fabric sheds some water and allows airflow, reducing wind load while still providing solid shade.
• Installation Flexibility: It can be attached to trees, roofs, walls or poles and works with common mounting hardware when proper corner gaps are observed.

Who It's For

This shade sail suits homeowners, small business operators, and hobby farmers who need a nonstandard triangular canopy and value high UV protection and durability. Installers who want a cooler patio, a covered chicken run, or a sun-safe play area will appreciate the custom sizing and robust hardware.

It is not ideal for buyers who expect a fully waterproof awning or who need rigid framing; the fabric is water and air permeable rather than a solid waterproof membrane, and customers who prefer oversized off-the-shelf sails should check dimensions carefully to avoid a too-small fit.

Pros & Cons

Pros

• High UV blockage and measurable cooling for comfortable outdoor use.
• Custom sizing from D-ring to D-ring gives a precise fit for irregular spaces.
• Sturdy build with double stitching and stainless steel D-rings for long life.
• Breathable fabric reduces wind strain and allows some water passage to avoid pooling.

Cons

• Some customers report the delivered size can feel smaller than expected, so careful measurement and communication are required.
• Not fully waterproof, so it does not replace a hard canopy when full rain protection is needed.

Specifications

Shape	Right triangle
Size (example)	18' x 20' x 26.9'
Material	200 GSM HDPE
UV Blockage	Up to 95% (UPF50+)
Edge & Hardware	Reinforced edges with stainless steel D-rings
Permeability	Water and air permeable
Warranty	3 year assurance

Our Verdict

The custom right triangle shade sail is a sensible buy for anyone who needs precise fit and strong sun protection without a rigid frame; its 95% UV blockage, cooling effect and durable construction make it good value for patios, yards and animal enclosures. Buyers must measure carefully and accept that the sail is breathable rather than fully waterproof.

Frequently Asked Questions

How should I measure for a custom sail?
Measure from D-ring to D-ring where the sail will be anchored and allow corner gaps as recommended to manage tension and wind load.

Is the sail waterproof?
No, the HDPE fabric is water and air permeable so it sheds some water but is not a fully waterproof membrane.

Will it withstand summer wind and sun?
The reinforced edges, double stitching and stainless steel D-rings improve durability for summer heat and typical wind, though extreme storms require removal or additional bracing.