Custom Size 20 ft x 21 ft Green Rectangle Sun Shade Sail - Trim Fit

In this review of the Custom Size 20' x 21' Green Rectangle Sun Shade Sail, the bottom line is simple: it is for homeowners and small businesses who need a tailored, heavy-duty shade solution that prioritizes fit and sun protection. The sail's most convincing attribute is the made-for-fit approach - measurements are taken corner to corner and the curved edges are designed to prevent sagging, so the finished canopy sits tight and looks tidy. For those wanting strong UV blocking and privacy without a complicated installation, this shade sail delivers reliable coverage and long-lasting material.

Key Features

• Custom Fit: Measurements taken from corner to corner with curved edges reduce sag and create a clean, tight appearance that suits irregular mounting points.
• Durable Material: Constructed from virgin polyethylene for lightweight strength that stands up to regular outdoor use and resists tearing.
• UV Protection: Blocks up to 95% of UV rays and about 90% of visibility to lower heat and increase privacy under the canopy.
• All-Season Use: Useful for summer shading, night frost reduction and light rain coverage, making it versatile across seasons.
• Local Custom Manufacturing: Custom sizes are made locally and delivered on time, which helps when a precise fit matters for a patio or carport.
• Warranty: Backed by a 3-year limited warranty for added confidence in durability and material performance.

Who It's For

The shade sail is ideal for homeowners with patios, pools, driveways, carports, gardens or balconies who want a tailored canopy rather than an off-the-shelf size. It suits people who value a tight installation that resists sagging and who need meaningful UV reduction for cooling and privacy.

Those who should look elsewhere include buyers wanting full waterproofing for heavy storms or those unwilling to measure corner-to-corner for a custom fit. If professional installation is a must, factor that into planning because customers report mixed ease-of-installation experiences.

Pros & Cons

Pros

• High UV blockage provides noticeable cooling and privacy under the canopy.
• Curved edges and custom measurements produce a taut, sag-resistant installation.
• Virgin polyethylene fabric balances light weight with long-term durability and color accuracy.
• Locally made custom sizing and a 3-year limited warranty add value and reliability.

Cons

• Not fully waterproof, so it only handles light rain rather than heavy downpours.
• Installation can be mixed in difficulty for DIYers depending on mounting points and hardware used.

Specifications

Product Type	Custom rectangle sun shade sail
Size	20' x 21' (custom made)
Material	Virgin polyethylene fabric
UV Blocking	Up to 95% UV rays, ~90% visibility
Recommended Use	Patios, pools, driveways, carports, gardens, balconies
Warranty	3-year limited warranty
Fit Details	Measurements taken corner to corner; curved edges to prevent sag

Our Verdict

The Custom Size 20' x 21' Green Rectangle Shade Sail is a strong option for anyone who needs a tailored, UV-blocking canopy that looks neat and resists sagging. With durable virgin polyethylene, local custom manufacture and a 3-year warranty, it represents good value for patios, pools and carports - just be aware it is designed for shade and light rain rather than full waterproofing.

Frequently Asked Questions

How is the sail measured?
Measurements are taken from corner to corner and the sail is cut with curved edges to ensure a tight, sag-resistant fit.

Will it block sunlight and provide privacy?
Yes, the fabric blocks up to about 95% of UV rays and roughly 90% of visibility for cooling and privacy beneath the canopy.

Can it handle heavy rain?
The sail provides light rain coverage and frost reduction but is not intended as a full waterproof solution in heavy storms.