ShadeMart 17 ft x 23 ft White Sun Shade Sail UPF50 Rectangle - Durable

In this review the ShadeMart 17 ft x 23 ft White Sun Shade Sail is evaluated for homeowners and RV owners who need broad, breathable sun protection without a solid structure. The bottom line: it is a heavy duty woven HDPE rectangle sail that blocks up to 95% of UV while allowing water and air to pass through, so it cools shaded areas noticeably. The review focuses on build quality, installation practicality, and real-world performance for patios, carports, and temporary covers.

Key Features

• Material: Woven HDPE fabric provides strong, tear-resistant coverage that reduces heat build-up while remaining breathable.
• UV protection: Blocks up to 95% of harmful UV rays so shaded areas feel cooler and occupants get reliable sun protection.
• Corners and hardware: Stainless steel D rings attached to heavy duty white webbing give secure anchor points that resist corrosion.
• Water and air permeability: The sail is water permeable and breathable, so rain drains through and wind can pass without creating a solid sail effect.
• Custom sizing: The brand offers custom sizes so measurements can be matched to patios, carports, and other irregular venues.
• Styling: Rectangle shape and multiple color options let the sail integrate into existing outdoor design while providing functional shade.

Who It's For

The ShadeMart rectangle sail is ideal for homeowners, RV owners, and small-business outdoor areas that need reliable sun protection without a fixed roof. It is especially useful where airflow and drainage are important, such as over patios, pools, pergolas, and carports, and for those who want a decorative yet functional shade solution.

It is not suited for buyers who require a waterproof canopy or a permanent, rigid shelter; anyone needing full rain protection or a windproof enclosed structure should consider a different product or add a separate tarp or hardcover solution.

Pros & Cons

Pros

• Durable woven HDPE fabric that delivers long-lasting UV protection and resists fading in sun exposure.
• Stainless steel D rings and heavy webbing make for a secure attachment and good build quality.
• Breathable, water permeable design reduces wind load and prevents pooling while cooling shaded spaces by noticeable degrees.

Cons

• Not waterproof, so it will not provide complete rain protection in heavy storms.
• Reported color variation and occasional size discrepancies require careful measurement and realistic expectations about shade color and fit.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	17 ft x 23 ft
Material	Woven HDPE (High Density Polyethylene)
UV Rating	Blocks up to 95% of UV rays (UPF50)
Corners	Stainless steel D rings with heavy duty white webbing
Waterproof	No; water permeable and breathable

Our Verdict

The ShadeMart 17 ft x 23 ft rectangle shade sail is a good value for anyone who needs large-area, breathable sun protection and durable hardware for seasonal or semi-permanent installations. It performs well for patios, carports, and RV covers by cutting sun and heat while allowing drainage and airflow, but those seeking full rainproof coverage should look elsewhere.

Frequently Asked Questions

Is this sail waterproof?
The sail is water permeable and not waterproof, designed to allow water and air to pass through rather than shed heavy rain.

Will it block sun effectively?
Yes; the fabric blocks up to 95% of harmful UV rays and noticeably lowers temperatures beneath the canopy.

Can it be attached to trees or poles?
Yes; with proper hardware kits the sail can be anchored to poles, trees, walls, or roofs for flexible installation.