21ft x 22ft Grey Rectangle Sun Shade Sail - Custom UPF50+ Canopy

Our review looks at the 21' x 22' grey rectangle sun shade sail from Amgo, a custom-size UPF50+ canopy aimed at homeowners and small commercial spaces that need reliable sun protection. The bottom line: this sail is for anyone who wants a heavy-duty, customizable shade that blocks most UV while remaining breathable and durable. Installation is straightforward for a DIYer comfortable with measurements and hardware, and the 95% UV blockage plus temperature reduction of up to 15 degrees is the single biggest reason to choose this canopy.

Key Features

• 95% Sun Protection: The 200 GSM HDPE fabric blocks up to 95% of UV rays, giving strong protection during long sunny days.
• Temperature Reduction: By shading the area, the sail can lower ambient temperatures by as much as 15 degrees compared to unshaded spots, making outdoor time more comfortable.
• Commercial-Grade Durability: Stainless steel D-rings, reinforced edges and double-layer stitching create a robust canopy that holds up to frequent use and wind exposure.
• Water and Air Permeable: The breathable weave sheds some water and allows airflow, preventing heat buildup beneath the sail.
• Customizable Fit: The canopy is made to measure from D-ring to D-ring, so it can be tailored to awkward or nonstandard spaces for a neat, secure fit.
• Three-Year Assurance: The included 3-year assurance gives added confidence in material and construction over ordinary seasonals.

Who It's For

This shade sail is best for homeowners, landscapers, and small business owners who need an oversized, durable canopy for patios, play areas, or outdoor dining. It suits DIY installers who can measure from D-ring to D-ring and who want a breathable, cooler shaded area without solid roofing.

It is less suited for customers who need a fully waterproof awning or a temporary, lightweight beach-style shelter; the fabric is water and air permeable rather than fully waterproof, and installation requires anchoring points and some planning.

Pros & Cons

Pros

• Excellent UV protection with 95% blockage using 200 GSM HDPE fabric.
• Noticeable cooling effect, reported up to 15 degrees lower under the sail.
• Heavy-duty construction with stainless D-rings and reinforced double stitching for longevity.
• Custom sizing lets the sail fit unusual spaces and achieve a clean look.

Cons

• Not fully waterproof; the permeable fabric allows some water through and is meant to breathe rather than shed heavy rain.
• Accurate measurement and secure anchoring required, which adds a bit of installation complexity for some users.

Specifications

Product type	Rectangle sun shade sail
Size	21' x 22'
Material	200 GSM HDPE fabric
UV blockage	Up to 95% (UPF50+)
Permeability	Water and air permeable
Hardware	Stainless steel D-rings, reinforced edges
Assurance	3 years

Our Verdict

For those who need a durable, large-format shade that blocks the majority of UV and reduces temperature under the canopy, this custom 21' x 22' sail is a strong value. Its heavy-duty construction and customizable sizing make it a sensible long-term choice for patios and commercial outdoor seating, provided you accept that the fabric is breathable rather than fully waterproof.

Frequently Asked Questions

Is this sail fully waterproof?
Answer. No, the fabric is water and air permeable; it sheds some water but is designed to breathe rather than be fully waterproof.

How is the size measured for a custom fit?
Answer. Measure from D-ring to D-ring for precise sizing and allow recommended gaps at corners when planning attachment points.

How durable is the construction?
Answer. The sail uses 200 GSM HDPE, stainless steel D-rings, reinforced edges and double stitching, and it includes a 3-year assurance for durability.