Custom Size 11ft x 21ft Grey Rectangle Sun Shade Sail - 95% UV

Our review of the custom size 11' x 21' grey rectangle sun shade sail finds it best suited for homeowners and small commercial spaces that need robust sun protection without a permanent installation. The single biggest reason to buy is its combination of heavy-duty 200 GSM HDPE fabric and commercial-grade fittings that deliver up to 95% UV blockage while staying breathable and water and air permeable. Installation is flexible enough for patios, playgrounds, and carports, and the tailored D-ring to D-ring sizing means the sail can match an odd-shaped area when measured carefully.

Key Features

• 95% Sun Protection: Blocks up to 95% of UV rays with 200 GSM HDPE material to reduce sun exposure in living and working outdoor spaces.
• Temperature Reduction: Lowers under-canopy temperatures by as much as 15 degrees compared to unshaded areas for a noticeably cooler environment.
• Commercial-Grade Durability: Stainless steel D-Rings and reinforced edges with double-layer stitching resist fraying and long-term wear.
• Water & Air Permeable: The breathable fabric sheds wind pressure and allows rain to pass through, reducing strain on attachment points.
• Custom Size Fit: Order to make with D-ring to D-ring measurements for a tailored fit and request straight-edge customization if preferred.
• Three-Year Assurance: Comes with a 3-year assurance that covers manufacturing concerns and supports long-term use.

Who It's For

The shade sail is ideal for homeowners, daycare centers, cafes, and landscapers who need a durable, high-coverage canopy that reduces heat and sun exposure without a rigid frame. People who value color options and long-term material quality will appreciate the fabric and stitching choices.

Those who should look elsewhere include buyers who need a permanent, waterproof canopy or a rigid awning structure, and anyone unable or unwilling to take precise D-ring to D-ring measurements for a custom fit, since accurate sizing is important for proper tension and performance.

Pros & Cons

Pros

• High sun protection of about 95% reduces UV exposure for people and furniture.
• Durable 200 GSM HDPE fabric with stainless steel D-rings and reinforced stitching for long life.
• Custom sizing allows a tailored installation for odd or specific spaces.
• Breathable, water and air permeable design lowers wind loading and prevents pooling.

Cons

• Requires careful D-ring to D-ring measuring and a small gap at corners, so DIY installers must follow instructions precisely.
• Not a rigid, fully waterproof canopy; it is designed to be breathable rather than completely rainproof.

Specifications

Our Verdict

This custom 11' x 21' grey rectangle sun shade sail is a practical, value-oriented solution for anyone needing heavy-duty UV protection and temperature reduction without a fixed structure. Its commercial-standard fittings, breathable 200 GSM HDPE fabric, and customizable sizing make it a smart choice for patios, play areas, and small businesses that want durable, long-lasting shade with straightforward installation when measured correctly.

Frequently Asked Questions

How should I measure for a custom sail?
Measure from D-ring to D-ring and leave at least a 0.5 ft gap between D-Rings and poles, reducing by 1 to 1.5 ft per side if needed for tension.

Is this sail waterproof?
No, it is water and air permeable by design; it allows water and wind to pass through to reduce loading and prevent pooling.

How durable are the fittings?
The sail uses stainless steel D-Rings and reinforced edges with double-layer stitching and includes a 3-year assurance for manufacturing concerns.