Custom Size 11 ft x 21 ft x 23.7 ft Waterproof Red Triangle Sun Shade

In this review of the 11 ft x 21 ft x 23.7 ft red triangle sun shade sail, the bottom line is simple: this is a practical, heavy-duty shade for homeowners who need rapid sun and light rain protection for patios, carports, or yards. The reviewer found the construction and reinforced corners to be the single biggest reason to buy, since those details make installation straightforward and the sail durable in strong sun and variable weather. For anyone who wants a large, waterproof triangular canopy that reduces temperature and blocks most UV, this sail delivers.

Key Features

• Waterproof PU coating: The polyester fabric with a PU waterproof coating keeps light rain and wind from passing through so activity under the sail stays dry in showers.
• High UV blockage: Rated to block up to 90% of harmful UV, the sail serves as an economical canopy alternative for patios and carports.
• Temperature reduction: The canopy can lower the temperature by up to 15 degrees under the shade, making outdoor space noticeably more comfortable.
• Reinforced edges and corners: Curved edges with dual-layer webbing and stainless steel D rings provide secure anchor points and long-lasting strength.
• Quick to mount: The sail can be taken down or pulled up in about five minutes, which is useful for seasonal use or storage.
• Limited warranty: A three year limited warranty gives buyers documented coverage for construction or manufacturing concerns.

Who It's For

This shade sail is best for homeowners and renters who need a durable, waterproof triangle canopy for a patio, carport, garden, or yard and value reinforced hardware for secure mounting. It suits people who prioritize UV protection, lower surface temperatures, and quick seasonal setup.

It is less suited to those who need a perfect modular fit for irregular mounting points without customization, or buyers who require full heavy-storm engineered canopies rather than a commercial-standard water-resistant sail; users expecting exact indoor-style fit and finish should evaluate measurements carefully before ordering.

Pros & Cons

Pros

• Good build quality with solid stitching and reinforced dual webbing at edges for durability.
• Effective sun protection that blocks up to 90% of UV and reduces temperature under the sail.
• Waterproof PU coating keeps light rain and wind from passing through the fabric.
• Stainless steel D rings and quick install design make mounting and removal straightforward.

Cons

• Size impressions vary: some buyers find the supplied dimensions smaller than expected, so careful measurement is required.
• While water resistant, it is not a substitute for a fully engineered permanent roof in severe storms.

Specifications

Product type	Triangle sun shade sail
Size	11 ft x 21 ft x 23.7 ft
Material	Polyester with PU waterproof coating
UV blockage	Up to 90%
Edges & corners	Dual webbing with stainless steel D rings
Temperature reduction	Up to 15 degree lower under shade
Warranty	3 year limited warranty

Our Verdict

This waterproof red triangle sun shade sail is a solid, practical choice for outdoor shading where UV protection and quick setup matter; reinforced edges and stainless hardware make it durable and a good value for patios, carports, and yards, though buyers should confirm that the triangular dimensions match their mounting points before purchase.

Frequently Asked Questions

Is this sail truly waterproof?
The polyester fabric has a PU waterproof coating that resists light rain and prevents water from passing through in typical showers.

How much UV protection does it provide?
The sail blocks up to 90% of harmful UV, offering substantial sun protection for outdoor spaces.

Does it come with mounting hardware?
The product features stainless steel D rings and reinforced webbing at the corners, but additional anchors or turnbuckles are recommended and not listed as included.