ShadeMart 18 ft x 19 ft White Sun Shade Sail UPF50 Rectangle

In this review of the ShadeMart 18 ft x 19 ft White Sun Shade Sail, the bottom line is simple: this rectangle HDPE sail is for anyone who needs durable, breathable UV protection over a patio, carport, pool or garden. The fabric blocks up to 95% of harmful UV while remaining water permeable, so it cools the area without trapping moisture. Customers praising stitching and durability matches what the product delivers in everyday outdoor use, making it a practical, low-maintenance shading solution rather than a fully waterproof cover.

Key Features

• Woven HDPE fabric: provides strong, tear-resistant shade that reduces sunlight and heat while staying breathable.
• UPF50 sun protection: blocks up to 95% of UV rays to protect people and plants beneath the canopy.
• Water permeable design: allows rain and air to pass through so the sail dries quickly and avoids water pooling.
• Stainless steel D rings: heavy-duty corner fittings attached to reinforced webbing for secure anchoring to posts or structures.
• Custom size options: the brand offers a range of sizes to fit irregular venues, provided measurements are accurate.
• Rectangle styling: a simple shape that integrates with patios, pergolas, carports and pool areas as a decorative shade piece.

Who It's For

The ShadeMart rectangle sail is ideal for homeowners and gardeners who want reliable sun protection without a solid roof. It suits patios, carports, pergolas, poolside lounging, and vegetable gardens where air flow and drainage matter more than complete waterproofing. The reinforced corners and sturdy stitching also make it a good choice for moderately exposed installations.

People who need a fully waterproof shelter or require absolute blackout coverage should look elsewhere; this style is explicitly not waterproof and is designed to remain breathable. Also, buyers who cannot measure their site accurately should consider professional measuring or a tailor-made service to avoid sizing issues.

Pros & Cons

Pros

• Effective UV protection that noticeably lowers temperature under the canopy.
• Durable construction with strong stitching and stainless steel D rings for reliable anchoring.
• Breathable, water permeable fabric prevents pooling and improves airflow on hot days.
• Available in custom sizes and multiple colors to fit different outdoor layouts.

Cons

• Not waterproof, so it will not keep out heavy rain or create a dry shelter beneath the sail.
• Size and color may vary slightly due to manual measurement and production tolerances.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	18 ft x 19 ft
Material	Woven HDPE (High Density Polyethylene)
UV Protection	Blocks up to 95% (UPF50)
Hardware	Stainless steel D rings with heavy duty white webbing
Weather Performance	Water permeable and breathable, not waterproof

Our Verdict

The ShadeMart 18 ft x 19 ft rectangle shade sail is a practical, value-minded choice for anyone who needs reliable UV protection with good airflow and durable fittings. It is best where cooling and drainage are priorities rather than complete rain protection, and it offers strong stitching and hardware that justify its use across patios, gardens and carports.

Frequently Asked Questions

Is this shade sail waterproof?
The sail is water permeable and breathable; it is not waterproof and will allow water to pass through.

What hardware is included?
The product features stainless steel D rings attached to heavy duty white webbing at the corners; specific installation kits may be purchased separately.

Can I order a custom size?
Yes, ShadeMart offers custom sizes but buyers should measure their venue accurately to ensure the correct fit.