ShadeMart 16 ft x 19 ft Black Rectangle Shade Sail - UPF50 Cooling

In this review the ShadeMart 16' x 19' Black Rectangle Shade Sail is examined for homeowners and DIY installers who want a durable, breathable canopy that cuts sun and heat without trapping water. The bottom line: this shade sail delivers strong UV protection and good airflow because it is woven from HDPE and designed to be water permeable, making it best for patios, carports and poolside shade where breathability and reduced temperature matter most.

Key Features

• Woven HDPE fabric: The material blocks up to 95% of harmful UV rays while remaining breathable so the area beneath stays cooler.
• Stainless steel corner D rings: Heavy-duty metal rings attached to white webbing provide secure attachment points for standard hardware kits.
• Water and air permeable: The sail lets water and air pass through to avoid pooling and promote ventilation during warm or wet conditions.
• Custom sizing available: Multiple custom size options are offered so buyers can match irregular patios or carports when they measure carefully.
• Rectangle styling: A simple rectangular shape works with typical mounting points like poles, walls or trees and integrates with many outdoor designs.
• Durable construction: The fabric and reinforced corners are built for long-term outdoor use and customer reports note good durability in strong wind events.

Who It's For

The ShadeMart rectangle shade sail is ideal for homeowners, renters with anchor points, and DIYers who need a large breathable canopy for a patio, pergola, carport or pool area. It suits anyone prioritizing UV protection and airflow rather than a fully waterproof cover.

Those who need a completely waterproof shelter, or who cannot measure and anchor a rectangular sail accurately, should look at rigid awnings or purpose-built waterproof covers instead. Also, buyers wanting a pre-measured kit with hardware included should confirm fittings separately.

Pros & Cons

Pros

• Blocks up to 95% of UV rays and noticeably lowers temperatures beneath the sail.
• Breathable woven HDPE prevents water pooling and improves airflow on hot days.
• Stainless steel D rings and reinforced webbing make anchoring secure and durable.
• Custom sizes and multiple colors give flexibility to fit many outdoor layouts.

Cons

• Not waterproof, so it will not keep an area dry in heavy rain.
• Size can vary slightly due to manual measurement, so accurate measuring and planning are required.

Specifications

Our Verdict

The ShadeMart 16' x 19' rectangle shade sail is a practical, value-focused choice for anyone who wants strong UV protection and improved comfort outdoors without a rigid structure. Its breathable HDPE and reinforced corners make it a dependable canopy for patios, carports and pools, provided buyers accept that it is not waterproof and measure carefully for custom fits.

Frequently Asked Questions

Is this shade sail waterproof?
No. The fabric is water permeable and breathable so water will pass through rather than bead or pool.

Can it be attached to trees, poles and walls?
Yes. With proper hardware kits the stainless steel D rings and webbing allow attachment to poles, trees, walls or roofs.

Will it reduce temperature under the sail?
Yes. The woven HDPE blocks sunlight and can lower temperatures beneath the sail by several degrees, improving comfort.