11 ft x 11 ft x 15.6 ft Black Right Triangle Sun Shade Sail - 95% UV

In this review of the 11 ft x 11 ft x 15.6 ft black right triangle sun shade sail, the bottom line is practical: it is for homeowners and small commercial spaces who need strong sun protection and a cooler outdoor area without permanent construction. The reviewer found the sail delivers the single biggest benefit-reliable sun blocking-thanks to its high-density 200 GSM HDPE fabric that claims 95% UV protection. Installation is flexible for trees, walls, or posts and the tailored D-ring to D-ring sizing makes this a good option when a custom fit matters.

Key Features

• 95% UV blockage: The 200 GSM HDPE material blocks up to 95% of harmful UV rays for safer outdoor use in direct sun.
• Temperature reduction: The mesh weave lowers ambient temperature by up to about 15 degrees compared to unshaded areas, making patios and play areas noticeably cooler.
• Custom sizing: Measured from D-ring to D-ring so the sail can be ordered to fit tight or irregular spaces and options exist for straight edges on request.
• Durable construction: Reinforced edges, double-layer stitching and stainless steel D-rings improve longevity under tension and regular outdoor exposure.
• Breathable and water permeable: The fabric lets air and water pass through to reduce wind load and pooling after rain.
• Flexible installation: Can be mounted to trees, roofs, walls or posts; guidance suggests leaving at least 0.5 ft gap at corners or adjusting each side by 1 to 1.5 ft for best tension.

Who It's For

This shade sail suits homeowners with patios, decks or small commercial seating areas who want a removable, adjustable sun protection solution that reduces heat and blocks most UV rays. It is especially useful where a triangular shape fits better than rectangular sails and where a semi-permanent canopy is preferable to umbrellas.

Those seeking a fully waterproof cover, a rigid framed awning, or a solution guaranteed for many years in extreme sun may want to compare alternatives; customer reports on long-term durability are mixed, so customers expecting multi-year heavy coastal exposure should consider protective maintenance or heavier commercial options.

Pros & Cons

Pros

• Excellent sun protection with up to 95% UV blockage for safer outdoor use.
• Noticeable temperature reduction, often around 10-15 degrees in shaded spots.
• Sturdy build with stainless D-rings and reinforced edges for reliable mounting.
• Custom sizing available makes it easy to fit odd-shaped areas.

Cons

• Durability reports are mixed; some users saw significant wear after about a year in intense sun.
• Not fully waterproof, so it does not replace a solid canopy in heavy rain situations.

Specifications

Shape	Right triangle
Size	11 ft x 11 ft x 15.6 ft
Material	200 GSM HDPE mesh
UV Protection	Up to 95% blockage (UPF50+)
Hardware	Stainless steel D-rings, reinforced edges
Weather	Water and air permeable (not fully waterproof)
Guarantee	3 year assurance included

Our Verdict

The 11 ft x 11 ft x 15.6 ft black right triangle shade sail is a solid choice for anyone needing strong sun protection and a cooler outdoor space with flexible mounting options and custom sizing. It represents good value for patios and commercial seating, though buyers should be aware that longevity can vary with intense sunlight exposure and maintenance will extend useful life.

Frequently Asked Questions

Is the sail waterproof?
The fabric is water and air permeable, so it does not form a waterproof roof but avoids pooling after rain.

How should I measure for a custom fit?
Measure from D-ring to D-ring for each corner and allow the recommended corner gap of at least 0.5 ft or adjust sides by 1 to 1.5 ft for optimal tension.

What kind of hardware is used?
The sail includes stainless steel D-rings and reinforced edges; mounting kits are recommended for secure attachment to trees, walls or posts.