ShadeMart 12 ft x 18 ft Turquoise Sun Shade Sail - UPF50 Rectangle

In this review the ShadeMart 12 ft x 18 ft Turquoise Sun Shade Sail is presented as a practical, budget-friendly shielding option for patios, carports, and yards where UV protection and airflow matter. The biggest reason to consider this shade sail is simple: it blocks up to 95% of harmful UV rays while remaining water permeable, so it lowers ambient temperatures without trapping heat or creating a waterproof canopy. The review focuses on durability, material quality, and how well the rectangle shape installs and performs in everyday outdoor settings.

Key Features

• MATERIAL: Woven HDPE fabric delivers a durable, fade-resistant surface that stands up to sun exposure while remaining lightweight enough to install.
• UV PROTECTION: UPF50-rated construction blocks up to 95% of harmful UV rays, helping reduce temperatures by roughly 10 to 15 degrees in shaded areas.
• BREATHABILITY: The water permeable and air permeable weave allows wind and rain to pass through, reducing strain on anchor points and preventing pooling.
• HARDWARE READY: Stainless steel corner D rings attached to heavy duty webbing give secure anchor points compatible with common shade sail kits.
• CUSTOM SIZE OPTIONS: Multiple custom sizes are available so you can match irregular venues, provided you measure the installation area accurately.
• STYLING: Rectangle shape and bold turquoise color offer a decorative, modern look that integrates into patios, pergolas, and pool areas.

Who It's For

The ShadeMart 12 ft x 18 ft sail is ideal for homeowners and renters who need strong sun protection for a medium-sized outdoor area and want airflow rather than a waterproof cover. It works well for patios, carports, poolside lounges, and pergolas where lowering direct sunlight and temperature is the priority.

People who need a fully waterproof canopy, a perfectly rigid rectangular fabric, or precise factory-cut geometry may want to consider a different product. Also, if you do not plan to use proper mounting hardware and secure anchor points, this sail will not perform optimally.

Pros & Cons

Pros

• High sun protection with UPF50 fabric that noticeably reduces heat in shaded spaces.
• Durable woven HDPE material and stainless steel D rings provide long-term functionality and strength.
• Permeable design prevents water pooling and reduces wind resistance, lowering stress on mounts.
• Custom sizes and multiple colors allow flexible styling and fit for different venues.

Cons

• Not waterproof, so it will not keep rain out during heavy storms.
• Some customers report size and shape variation from manual measurements, so careful measuring is required before purchase.

Specifications

Brand	ShadeMart
Shape	Rectangle
Size	12 ft x 18 ft
Material	Woven HDPE (High Density Polyethylene)
UV Protection	Blocks up to 95% of UV rays (UPF50)
Hardware	Stainless steel corner D rings with heavy duty webbing
Water Resistance	Water and air permeable (not waterproof)

Our Verdict

The ShadeMart 12 ft x 18 ft Turquoise sail is a solid value for anyone seeking reliable sun protection and airflow for medium outdoor spaces. Its UPF50 fabric, durable HDPE weave, and stainless steel attachment points make it a practical, long-lasting option; just measure carefully and remember it is not intended as a waterproof cover.

Frequently Asked Questions

Is this shade sail waterproof?
This style is water permeable and breathable, so it will not keep out heavy rain and is not waterproof.

Can it be attached to trees and poles?
Yes, with the 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 UPF50 fabric blocks most UV and typically lowers temperatures in shaded areas by roughly 10 to 15 degrees.