ShadeMart 12 ft x 20 ft White Sun Shade Sail - UPF50 Rectangle

In this review the ShadeMart 12 ft x 20 ft white sun shade sail is examined for homeowners and small-business owners who need a durable, breathable canopy for patios, carports or pool areas. The bottom line: it is a robust woven HDPE rectangle that reliably blocks up to 95% of UV while remaining water permeable and breathable, making it a practical choice when reducing heat and protecting outdoor furniture are priorities. The review focuses on build, sun protection, and real-world fit for typical outdoor installations.

Key Features

• Material: Woven HDPE fabric delivers a strong, fade-resistant surface that stands up to long-term outdoor exposure.
• UV Protection: Blocks up to 95% of harmful UV rays and sunlight to noticeably lower temperatures beneath the sail.
• Breathability: Water permeable and air permeable construction lets rain and breeze pass through rather than pooling on the fabric.
• Hardware Ready: Stainless steel D rings and heavy duty white webbing at corners provide secure attachment points for typical mounting hardware.
• Custom Sizes: A range of customizable sizes is available so customers can match the sail area to their venue when measured accurately.
• Styling: Rectangle shape and neutral white color work well as a subtle decorative element that blends with many outdoor designs.

Who It's For

This shade sail is a good match for homeowners looking to cut direct sun over patios, pergolas, carports and poolside seating while keeping airflow and drainage. It also suits renters and property managers who want a removable, breathable cover that reduces heat and sun damage without a permanent structure.

Customers who need a fully waterproof canopy or an exact pre-cut architectural shape should look elsewhere; this product is explicitly not waterproof and customers should be prepared for small measurement variations when ordering custom sizes.

Pros & Cons

Pros

• High density polyethylene fabric feels durable and resists fading while offering strong sun protection.
• Water and air permeability prevents water pooling and improves comfort under the sail.
• Stainless steel D rings with heavy webbing make attachment straightforward with standard hardware kits.
• Customers report easy installation and good longevity even in severe weather when installed correctly.

Cons

• The sail is not waterproof, so it will not keep an area dry in steady rain.
• Size and shape can vary slightly due to manual measurement and trimming, so careful measuring is required before purchase.

Specifications

Our Verdict

The ShadeMart 12 ft x 20 ft rectangle sail is a practical, cost-effective option for anyone seeking reliable UV protection and improved outdoor comfort. It offers durable construction and easy attachment points, making it good value for patios, carports, and pool areas where breathability and sun blocking matter more than full waterproofing.

Frequently Asked Questions

Is this sail waterproof?
No, this style is water permeable and is not designed to be waterproof.

Will it reduce temperature under the sail?
Yes; by blocking up to 95% of UV the fabric typically lowers temperatures in shaded areas by a noticeable amount.

Can it be mounted to trees or poles?
Yes; with appropriate hardware kits the stainless steel D rings and webbing allow mounting to poles, trees, walls, or roofs.