Custom Size 11 ft x 21 ft x 23.7 ft Waterproof Blue 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 cover for patios, carports and yards that prioritizes sun and rain protection. It is best for homeowners and small businesses who need a large, water resistant canopy that also blocks UV. The reviewer found the build quality and reinforced corners reassuring, and noted the shade substantially lowers heat beneath it, making it a straightforward choice for anyone who wants quick installation and reliable performance.

Key Features

• Waterproof material: The polyester with PU waterproof coating prevents water and wind from passing through, so the area below stays drier during light to moderate rain.
• UV blockage: Rated to block up to 90% of harmful UV, the sail provides strong protection for skin and outdoor furnishings under direct sun.
• Temperature reduction: The fabric lowers the temperature by up to 15 degrees under the shade, improving comfort in hot conditions.
• Reinforced edges and corners: Dual layer white webbing and curved edges add strength while stainless steel D rings at each corner make attachment secure and straightforward.
• Quick to install: The sail can be taken down or set up in about 5 minutes for routine use, making it convenient for seasonal or event-based coverage.
• Limited warranty: A 3 year limited warranty gives some long term reassurance for normal use and material durability.

Who It's For

This sun shade sail is aimed at homeowners, renters with outdoor space, and small businesses that need a durable canopy for a patio, carport or yard. It suits anyone wanting both UV protection and water resistance in a single fabric, and those who value reinforced corners for permanent or semi-permanent mounting.

It is less appropriate for buyers who need a fully enclosed shelter in heavy storms or snow load, or for projects that require a precisely measured custom fit beyond the offered dimensions; some customers reported mixed impressions about whether the size met expectations.

Pros & Cons

Pros

• Well made with strong stitching and dual layer webbing that improves durability and attachment strength.
• Effective at blocking sunlight and reducing temperature beneath the sail for more comfortable outdoor use.
• Waterproof PU coated polyester keeps out light to moderate rain while remaining breathable to some degree.
• Stainless steel D rings and curved, finished edges simplify mounting and help the sail hold up in windy conditions.

Cons

• Size perception varies among buyers; some find the delivered dimensions smaller than expected, so measure carefully before ordering.
• Not designed as a fully solid structure for severe weather or heavy snow load.

Specifications

Product type	Triangle sun shade sail
Size	11 ft x 21 ft x 23.7 ft (custom size)
Material	Polyester with PU waterproof coating
UV protection	Blocks up to 90% of UV
Edges & corners	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

The custom size triangle sun shade sail is a solid value for outdoor shading needs when you want both waterproofing and UV defense in one product. It stands out for its reinforced construction and ease of installation, making it a sensible buy for patios, carports and yards, while buyers who need exacting size tolerance or protection in extreme weather should consider alternative shelter solutions.

Frequently Asked Questions

Is this shade sail waterproof?
The fabric is polyester with a PU waterproof coating so it resists water and keeps the area below drier in light to moderate rain.

How much UV protection does it provide?
It blocks up to about 90% of harmful UV, offering substantial sun protection for people and furniture underneath.

What hardware is used at the corners?
Corners are finished with dual webbing reinforcement and stainless steel D rings to secure the sail to anchors or posts.