Custom Size 11ft x 20ft x 22.8ft Waterproof Grey Triangle Sun Shade

In this review the focus is on a custom-size triangle sun shade sail that aims to give durable, weather-resistant coverage for patios, carports and yards. The seller-customizable 11' x 20' x 22.8' size tested here is best for homeowners or small businesses who need a strong, simple canopy that blocks sun and rain. The single biggest reason to buy is its combination of a PU-coated polyester that keeps water out while offering significant sun protection, making it a practical alternative to rigid awnings.

Key Features

• WATERPROOF material: The polyester with PU waterproof coating prevents water and wind from penetrating, so the shaded area stays drier during light to moderate rain.
• UV BLOCKAGE: Designed to block up to 90% of harmful UV rays, it provides substantial protection for people and outdoor furniture beneath the sail.
• Temperature reduction: By shading exposed surfaces, the sail can lower ambient temperature under the canopy by up to about 15 degrees, improving comfort on hot days.
• Reinforced corners and edges: Curved edges with dual-layer white webbing and stainless steel D rings add strength at attachment points for longer-lasting performance in sun and wind.
• Quick to install and remove: The lightweight fabric can be taken down or set up in roughly 5 minutes for seasonal or temporary use.
• Limited warranty: A 3-year limited warranty covers defects and gives buyers reasonable post-purchase protection.

Who It's For

The sail is ideal for homeowners, renters, and small businesses seeking a flexible shade solution for a patio, carport, or yard where a custom triangle fits irregular layouts. Its waterproof coating and reinforced corners suit locations exposed to strong sun and occasional rain, and the quick take-down feature is useful for seasonal users.

It is less suitable for someone who needs a permanent, architecturally integrated canopy or for extreme weather locations where heavy storms and prolonged high winds are common; in those cases a rigid structure or professionally engineered awning would be safer.

Pros & Cons

Pros

• Good waterproofing from the PU-coated polyester keeps light rain out and reduces dampness under the sail.
• Effective UV protection that blocks up to 90% of harmful rays and helps lower temperature beneath the canopy.
• Reinforced seams, dual webbing and stainless steel D rings improve durability at stress points.
• Three-year limited warranty provides reasonable assurance against early defects.

Cons

• Size perception varies; some buyers report the dimensions feel smaller than expected, so confirm measurements before ordering.
• While water resistant, very heavy or sustained storms may require a more permanent solution.

Specifications

Product type	Triangle sun shade sail
Size	11' x 20' x 22.8'
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 about 15 degree lower under shade
Warranty	3 years limited warranty

Our Verdict

This custom-size waterproof triangle shade sail is a practical, value-oriented choice for people who need quick, effective sun and rain protection over patios, carports or yards. With strong reinforcement at corners, PU-coated polyester and solid UV blockage, it delivers durable seasonal coverage; buyers who need absolute permanence or extreme-weather performance should consider a fixed structure instead.

Frequently Asked Questions

Is this sail waterproof?
Yes, the fabric is polyester with a PU waterproof coating designed to resist water and wind penetration.

How much UV does it block?
The sail is rated to block up to 90% of harmful UV rays.

Does it come with hardware?
The product description notes stainless steel D rings on the corners but does not list additional mounting hardware, so plan to provide appropriate anchors and tensioning gear.