Custom Size 16ft x 21ft Green Rectangle Sun Shade Sail - Tight

In this review of the Custom Size 16' x 21' Green Rectangle Sun Shade Sail, the bottom line is simple: this shade sail is for homeowners and small business owners who need a tailored, heavy-duty canopy that blocks heat and provides privacy. The sail is custom-cut from corner to corner with curved edges to prevent sagging, and its virgin polyethylene fabric blocks up to 95% of UV rays while reducing visibility by about 90%, which is the single biggest reason to buy: it combines a precise fit with reliable sun protection.

Key Features

• Custom Fit: Measurements are taken from corner to corner and the curved edges are designed to maintain tension and prevent sagging for a clean installed look.
• UV-Blocking Fabric: Made from virgin polyethylene, the material blocks up to 95% of UV rays to reduce heat and protect surfaces and skin beneath the canopy.
• Privacy and Shade: The fabric cuts visibility by about 90%, making it useful where both cooling and discretion are needed.
• All-Season Use: It provides sun protection in summer, reduces overnight frost risk, and handles light rain, suitable for patios, pools, carports and balconies.
• Durability and Warranty: The lightweight but strong weave offers long service life and comes with a 3-year limited warranty for peace of mind.
• Locally Made: Custom sizes are produced locally and delivered on time, reducing lead time and ensuring a tailored product.

Who It's For

This shade sail is ideal for homeowners with patios, pool areas, driveways or balconies who want a tailored solution rather than an off-the-shelf size; the precise corner-to-corner measurement and curved edges make it well suited to projects that need a neat, tensioned install. It also fits small businesses and rental properties that need durable, low-maintenance sun protection that still looks attractive.

Those who should look elsewhere include buyers who need full waterproof coverage in heavy rain or snow - the sail handles light rain but is not a substitute for a solid roof - and customers who prefer metal or rigid shade structures rather than a fabric sail that requires anchoring and periodic re-tensioning.

Pros & Cons

Pros

• Blocks up to 95% of UV rays, noticeably reducing heat beneath the canopy.
• Custom sizing and curved edges create a tight fit with minimal sag after installation.
• Durable virgin polyethylene construction offers good longevity for outdoor use.
• Locally made with a 3-year limited warranty provides reliable support and delivery.

Cons

• Not fully waterproof for heavy storms; best for sun, light rain and frost reduction.
• Installation can be mixed in experience-some users may need hardware or professional help for larger spans.

Specifications

Product Type	Rectangle sun shade sail
Size	16' x 21' (custom made)
Color	Green
Material	Virgin polyethylene
UV Protection	Blocks up to 95% of UV rays
Visibility Reduction	Approximately 90%
Warranty	3-year limited warranty

Our Verdict

The Custom Size 16' x 21' Green Rectangle Sun Shade Sail is a strong choice for anyone needing a tailored shade solution that balances sun protection, privacy and durability. Its custom fit and UV-blocking fabric make it good value for patios, pools and carports, provided you accept that it is fabric-based and best for light rain rather than full waterproof coverage.

Frequently Asked Questions

How are measurements taken?
Measurements are taken corner to corner and the sail is cut with curved edges to maintain tension and reduce sag after installation.

Is this sail waterproof?
It provides coverage for sun protection and light rain, but it is not intended as a fully waterproof solution for heavy storms or standing water.

What warranty is included?
The product comes with a 3-year limited warranty covering defects and durability issues under normal outdoor use.