Sun Shade Sail 11ft x 18ft Turquoise Blue Rectangle - UV Block Canopy

In this review the SUNLAX 11' x 18' turquoise rectangle sun shade sail is assessed for homeowners who want reliable, breathable UV protection over a patio or deck. The bottom line: it is a practical, well-made shade sail that blocks up to 95% of UV rays and gives dappled cooling shade while allowing airflow and light rain through. Installation is straightforward for a DIYer who plans mounting points, and the curved-edge design keeps the fabric taut and attractive once tensioned.

Key Features

• High shading rate: The fabric blocks up to 95% of UV rays, providing effective sun protection for outdoor seating areas.
• Breathable mesh: The knitted high-density polyethylene lets cooling breezes pass and allows light rain to penetrate so water does not pool on the surface.
• Durable construction: Cut from a complete mesh and finished with double strength stitched seams to resist fraying and extend service life.
• Rust-resistant hardware: Each corner includes anti-rust D-rings and the product ships with four cords for basic installation.
• Curved edge design: The curved edges reduce sagging and improve the look and shading performance when properly tensioned.

Who It's For

This shade sail is a good fit for homeowners with a patio, deck, pergola or backyard seating who need an inexpensive way to cut UV exposure and create a cooler sitting area. It also suits renters or seasonal users because it is relatively lightweight and easy to take down for storage.

Those who need a fully waterproof canopy, ready-made mounting hardware, or a precise dimension with zero length tolerance may want to consider a different product or purchase the recommended SUNLAX accessories to match their installation needs.

Pros & Cons

Pros

• High-quality fabric that blocks a large portion of UV and delivers pleasant dappled shade.
• Simple hardware setup with four D-rings and included cords makes installation accessible to most DIYers.
• Curved edges and reinforced stitching reduce sagging and improve long-term durability.
• Permeable mesh keeps air moving and prevents water pooling in light rain.

Cons

• Not waterproof, so it will not keep out heavy rain and is intended primarily for sun protection.
• Length measurements include D-rings and can have a tolerance up to 4 inches, so exact fit may require planning or custom sizing.

Specifications

Product type	Rectangle sun shade sail
Size	11' x 18'
Color	Turquoise blue
Material	High-density polyethylene knitted mesh (no recycled materials)
Shading rate	90%-95% (white series 80%-85%)
Hardware	4 anti-rust D-rings and 4 cords included
Water resistance	Permeable mesh, not waterproof

Our Verdict

The SUNLAX 11' x 18' turquoise shade sail is a solid value for anyone seeking effective UV reduction and a cooler outdoor space; its breathable, well-stitched fabric and curved-edge design deliver lasting shade when installed with proper tension. Buy it if you want affordable sun protection and airflow; consider SUNLAX accessories or custom sizing if you need precise measurements or full waterproofing.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric is permeable and allows light rain to pass through, so it is not waterproof and will not stop heavy rain.

Does it include mounting hardware?
The sail includes four anti-rust D-rings and four cords; additional mounting hardware such as hooks or turnbuckles should be purchased separately.

How much UV protection does it provide?
The high-density polyethylene fabric provides about 90%-95% shading and blocks up to 95% of UV rays for the colored series.