Custom Size 15 ft x 18 ft x 23.4 ft Waterproof Grey Triangle Sun Shade

In this review of the custom size triangle sun shade sail, the bottom line is simple: this is a practical, heavy-duty canopy for people who need reliable sun and light rain protection over patios, carports, or yards. The reviewer found the sail useful where strong UV blockage and quick installation matter, and recommends it primarily to homeowners and small business outdoor areas that want an economical, durable shade option. The waterproof polyester with PU coating and reinforced corners make the product a clear reason to buy for those prioritizing weather resistance and structural durability.

Key Features

• Waterproof material: The polyester fabric with PU waterproof coating keeps light rain and spray from passing through, so seating and stored items stay drier than with a typical mesh sail.
• UV blockage: Blocks up to 90% of harmful UV, providing meaningful sun protection and reducing direct sun exposure for people and furnishings beneath the sail.
• Temperature reduction: Lowers the temperature under the shade by up to 15 degrees, making outdoor spaces noticeably cooler during hot days.
• Reinforced edges and corners: Curved edges with dual-layer white webbing and stainless steel D rings give secure anchor points and improved durability under tension.
• Quick to install: The sail can be taken down or pulled up in about 5 minutes, which is convenient for seasonal use or temporary coverage.
• Limited warranty: A 3 year limited warranty provides some assurance against manufacturing defects for a typical outdoor service life.

Who It's For

This shade sail suits homeowners, renters with outdoor patios, and small commercial uses such as cafe seating or carports that need a waterproof, UV-blocking cover without a permanent roof. It is also a good fit for DIYers who want fast installation and reinforced hardware built into the fabric.

People who should look elsewhere include those who need an opaque, permanent roofing solution or who require certified structural attachments for heavy snow loads; this sail is designed for sun, wind and light rain protection rather than as a full structural roof replacement.

Pros & Cons

Pros

• Effective UV protection and noticeable cooling under the shade.
• Waterproof PU-coated polyester keeps light rain from passing through.
• Sturdy construction with dual webbing edges and stainless steel D rings for reliable anchoring.
• Fast to mount or remove, convenient for seasonal or temporary use.

Cons

• Size perception varies among buyers, so custom sizing should be measured carefully before ordering.
• Not intended as a permanent structural roof for heavy snow or ice loads.

Specifications

Product type	Waterproof triangle shade sail
Size	15 ft x 18 ft x 23.4 ft (custom size)
Material	Polyester with PU waterproof coating
UV protection	Blocks up to 90% of harmful UV (UPF50+)
Edge & corner finish	Dual-layer white webbing with stainless steel D rings
Temperature reduction	Up to 15 degree lower under shade
Warranty	3 year limited warranty

Our Verdict

For anyone who needs a durable, waterproof shade option that also blocks a large portion of UV, this custom size triangle sail offers strong value for patios, carports and outdoor seating areas. Its reinforced edges and quick install make it a practical pick for seasonal or semi-permanent use, though buyers should confirm measurements and avoid relying on it as a substitute for a permanent roof in severe weather.

Frequently Asked Questions

Is this sail waterproof in heavy rain?
It is PU-coated polyester and resists light to moderate rain, but it is not designed as a substitute for a full waterproof roof in prolonged heavy downpours.

How long does installation take?
Most users can mount or remove the sail in about 5 minutes once anchor points are prepared, though initial measuring and securing may take longer.

Does it block UV effectively?
Yes, the fabric blocks up to 90% of harmful UV and is rated UPF50+ for sun protection.