Custom Size 13ft x 19ft x 23ft Right Triangle Sun Shade Sail - Cool

In this review the focus is a custom-size right triangle sun shade sail designed for patios, gardens and light commercial spaces. The biggest reason to consider it is its combination of strong sun protection and customizable fit: made from 200 GSM HDPE with stated UPF50+ performance, the sail blocks up to 95% of UV and can be ordered to D-ring measurements for a tailored installation. The reviewer found it best where measured coverage and temperature reduction matter more than a one-size-fits-all product.

Key Features

• 95% Sun Protection: The 200 GSM HDPE fabric blocks most UV rays to protect people and furnishings under the sail.
• Temperature Reduction: The shade lowers ambient temperature by up to about 15 degrees compared with unshaded areas for a noticeably cooler sitting area.
• Custom Fit: The sail is made to order from D-ring to D-ring so it can match irregular spaces and prevent sagging when measured accurately.
• Durable Construction: Reinforced edges, double-layer stitching and stainless steel D-rings increase longevity in sun and wind exposure.
• Breathable and Water Permeable: The woven HDPE lets air and water pass through to avoid ponding while still providing shade.
• Installation Flexibility: It can be attached to trees, roofs, walls or posts using standard mounting hardware for many backyard configurations.

Who It's For

This sail is aimed at homeowners and small businesses that need a tailored shade solution rather than a standard size product. If you have a specific triangular area to cover, want reliable UV protection for children or pets, or need to reduce surface temperatures on a patio or over a coop, the custom sizing and sturdy materials are strong advantages.

Those who should look elsewhere include buyers who prefer ready-made, off-the-shelf sizes for simple, immediate installs or those who need a fully waterproof canopy for constant rain protection. Also measure carefully before ordering, since customers have noted sizing surprises when the finished sail arrives smaller than expected.

Pros & Cons

Pros

• High UV blockage from the 200 GSM HDPE fabric provides meaningful sun protection.
• Custom D-ring sizing gives a tailored fit for awkward or specific outdoor layouts.
• Stainless steel D-rings and reinforced double stitching increase durability and lifespan.
• Permeable weave reduces wind load and prevents water pooling compared with solid fabrics.

Cons

• Some customers report the finished sail can feel smaller than anticipated, so precise measuring is essential.
• The sail is water permeable rather than fully waterproof, so it does not create a dry shelter in heavy rain.

Specifications

Material	200 GSM HDPE
UV Blockage	Up to 95% (UPF50+ implied)
Typical Temperature Reduction	Up to 15 degrees compared with unshaded areas
Shape	Right triangle, custom D-ring to D-ring sizing
Hardware	Stainless steel D-rings; reinforced edges with double stitching
Permeability	Water and air permeable (breathable weave)
Assurance	3 year assurance included

Our Verdict

For anyone needing a measured, durable triangular shade that prioritizes UV protection and cooler temperatures, this custom-size sail is good value and performs well. It is particularly useful for patios, pergolas or animal enclosures where tailored coverage and breathability matter, but buyers must measure carefully and accept that it is not a waterproof canopy.

Frequently Asked Questions

Can this sail be installed on trees and posts?
Yes, the design accepts attachment to trees, roofs, walls or posts using mounting hardware kits; leave recommended gaps at corners for best tension.

Is the fabric waterproof?
No, the woven HDPE is water and air permeable to prevent ponding, so it does not provide full rainproof coverage.

How important is measuring D-ring to D-ring?
Very important; the sail is customized to those measurements and customers have reported issues when measurements were inaccurate or expectations for final size differed.