Custom Size 11ft x 13ft x 17ft Red Right Triangle Sun Shade Sail

In this review the focus is on a customizable right triangle sun shade sail that promises heavy UV defense and a cooler outdoor area. The bottom line: this product is for homeowners and small businesses who need a tailored shade solution with robust materials and simple mounting options. The sail delivers up to 95% sun protection and can lower temperatures by as much as 15 degrees compared with unshaded spots, which is the single most compelling reason to consider it for patios, play areas, or commercial seating.

Key Features

• 95% UV blockage: The 200 GSM HDPE fabric blocks up to 95% of harmful rays to protect people and furniture underneath.
• Temperature reduction: The weave reduces ambient surface temperatures by up to 15 degrees versus unshaded areas for noticeably cooler shade.
• Custom sizing: Measured D-ring to D-ring, the sail is made to fit specific layouts so it can match odd or tight spaces.
• Durable construction: Stainless steel D-rings, reinforced edges and double-layer stitching resist fraying and wear for longer life.
• Easy installation: The sail installs to trees, roofs, walls or posts using standard mounting hardware and guidance on corner spacing for optimal performance.
• Breathable and water permeable: The material sheds some water and allows air flow so it reduces heat without creating a sealed, damp canopy.

Who It's For

This shade sail is aimed at homeowners, cafes, small commercial spaces and landscapers who need a custom-fit triangular shade that balances strong UV protection with airflow. It is especially useful where a permanent pergola is impractical but large, reliable coverage is required.

Those seeking a decorative, short-term sun umbrella alternative or a tailored canopy for a particular footprint will find the customization and sizing approach useful. Buyers wanting a fully waterproof awning or a rigid, guaranteed multi-year structural roof should consider other product classes since this is a breathable HDPE sail designed for shade rather than full waterproofing.

Pros & Cons

Pros

• High UV protection of up to 95% reduces sun exposure for users and surfaces below.
• Material and hardware are solid: 200 GSM cloth, stainless steel D-rings and reinforced edges increase longevity.
• Custom sizing D-ring to D-ring means a tailored fit for irregular areas and better coverage than fixed-size sails.
• Installation is flexible: can mount to trees, walls or poles and includes clear guidance on corner spacing.

Cons

• Durability reports are mixed in heavy sun exposure; some users saw significant wear after a year or slightly more, so lifespan varies by climate.
• Not fully waterproof; the sail is water and air permeable, so it does not create a dry, sealed shelter in heavy rain.

Specifications

Shape	Right triangle
Custom size	11' x 13' x 17' (D-ring to D-ring measurements)
Material	200 GSM HDPE
UV protection	Up to 95% blockage
Hardware	Stainless steel D-rings, reinforced edges
Permeability	Water and air permeable
Assurance	3 years

Our Verdict

The customizable right triangle sun shade sail is a solid value for people wanting strong sun protection and a cooler outdoor space without a permanent structure. With 95% UV blockage, sturdy hardware and straightforward installation, it suits patios, play areas and small commercial seating. Buyers in very sunny, harsh climates should monitor wear over time, but for most users the sail is a worthwhile, practical upgrade.

Frequently Asked Questions

Is this sail fully waterproof?
Answer. No, the fabric is designed to be water and air permeable, so it provides shade and reduces heat but does not form a fully waterproof canopy.

How should I measure for a custom fit?
Answer. Measure from D-ring to D-ring at the attachment points you plan to use and provide those dimensions for a tailored fit; allow recommended corner gaps for optimal tension.

How long will the sail last in strong sun?
Answer. Construction is durable with reinforced stitching and stainless D-rings, but real-world longevity varies by climate; some users report over a year of service while others in very harsh sun saw faster degradation.