18ft x 21ft x 27.7ft Right Triangle Sun Shade Sail - 95% UV Protection

In this review the reviewer found the Amgo custom size right triangle shade sail to be a practical solution for patios, gardens, and small commercial outdoor areas that need strong sun protection without a rigid canopy. The single biggest reason to buy is the fabric performance: a heavy 200 GSM HDPE weave that blocks up to 95% of UV, which noticeably cools shaded areas and stands up to regular outdoor use. It is a tailored, made-to-order sail so buyers should measure carefully before ordering.

Key Features

• 95% UV blockage: The 200 GSM HDPE fabric delivers high sun protection for long periods in direct sun, reducing UV exposure for people and belongings beneath it.
• Temperature reduction: The shade reduces ambient temperatures by up to around 15 degrees compared with unshaded areas, making patios and work spaces noticeably cooler.
• Custom fit: The sail is made to measured D-ring to D-ring dimensions so it fits irregular spaces and allows choice of shape and edge style for cleaner installation.
• Durable construction: Stainless steel D-rings, reinforced edges and double-layer stitching resist fraying and extend service life under normal outdoor conditions.
• Permeable design: The HDPE weave is water and air permeable, so wind load is reduced and light rain can pass through rather than pooling on the canopy.
• Easy installation guidance: The product ships with guidance on corner gaps and hardware placement so installation to trees, poles or walls is flexible.

Who It's For

This shade sail is best for homeowners, small business patio operators, or anyone needing a custom-shaped sun shelter for a deck, pergola or garden area who values high UV protection and commercial-grade materials. It works well where a breathable sail is preferred over a solid waterproof tarp, and where a tailored fit gives a neater look.

People who need a fully waterproof cover, a very large single-piece shade for wide open fields, or who are unable to supply accurate D-ring-to-D-ring measurements should consider alternate products or professional measuring help before ordering. Note that customer feedback mentions size concerns, so double-check measurements to avoid disappointment.

Pros & Cons

Pros

• High sun protection that blocks about 95% of UV, improving comfort and safety in direct sun.
• Durable 200 GSM HDPE fabric with reinforced edges and stainless steel D-rings for longer service life.
• Reduces temperature under the sail by up to about 15 degrees, making outdoor time more comfortable.
• Breathable, water and air permeable weave that reduces wind load and prevents water pooling.

Cons

• Because it is custom made, accurate D-ring-to-D-ring measurements are essential and some customers reported receiving a product smaller than expected.
• Not fully waterproof; it is a permeable shade rather than a solid rainproof canopy.

Specifications

Shape	Right triangle
Size	18 ft x 21 ft x 27.7 ft (custom made)
Material	200 GSM HDPE
UV Protection	Up to 95% blockage
Permeability	Water and air permeable
Hardware	Stainless steel D-rings, reinforced edges
Warranty	3 years assurance

Our Verdict

The custom-sized right triangle shade sail is a solid choice for those who need high UV protection and a tailored fit for patios or small commercial areas; its 200 GSM HDPE fabric, reinforced edges and stainless steel D-rings deliver good durability and measurable cooling benefits. Measure carefully before ordering and accept that this is a breathable shade rather than a waterproof canopy; when used appropriately it offers good value for the material and construction quality.

Frequently Asked Questions

Is this shade waterproof?
The sail is water permeable by design, so it does not create a waterproof roof but prevents pooling and reduces wind load.

How should I measure for a custom order?
Measure from D-ring to D-ring for each corner; follow the recommended gaps of at least 0.5 ft between D-rings and poles or adjust by 1 to 1.5 ft per side as advised.

How durable is the hardware?
The sail includes stainless steel D-rings and reinforced, double-stitched edges for enhanced resistance to fraying and regular outdoor use.