Custom Size 13 ft x 13 ft x 13 ft Blue Triangle Sun Shade Sail

Our review finds the Custom Size 13 ft x 13 ft x 13 ft Blue Triangle Sun Shade Sail is a practical choice for homeowners and small businesses who want strong sun protection without a permanent structure. In this review the standout is reliable UV defense: made from 200 GSM HDPE fabric it blocks up to 95% of UV, so it is ideal where shade and lower temperatures matter. It installs to trees, poles or buildings and the custom D-ring to D-ring sizing gives a tailored fit for awkward outdoor spaces.

Key Features

• 95% sun protection: The 200 GSM HDPE material blocks up to 95% of harmful UV rays, reducing sun exposure for people and furnishings beneath the sail.
• Temperature reduction: The fabric lowers air temperature under the sail by up to 15 degrees compared to unshaded spots, giving noticeably cooler comfort on hot days.
• Customizable fit: Measured from D-ring to D-ring for an accurate fit, the sail can be ordered to match nonstandard layouts or adjusted for straighter edges by request.
• Durable construction: Reinforced edges, double-layer stitching and stainless steel D-rings extend service life and resist fraying and wear in active outdoor use.
• Easy installation: The sail attaches to trees, roofs, walls or poles with standard mounting hardware and requires corner gaps to ensure proper tension.
• Breathable and water permeable: The HDPE weave allows air and water to pass, preventing pooling and reducing wind load compared with solid canopies.

Who It's For

The shade sail suits homeowners, renters, small commercial spaces and pet enclosures that need reliable sun protection and a cooler outdoor area without building a permanent structure. Its custom sizing and simple anchor options make it a good fit for patios, play areas, porches and chicken coops where a triangular layout works best.

Those seeking a fully waterproof awning, a rigid structure to withstand extreme storms, or an inexpensive off-the-shelf giant sail without custom measurement should look elsewhere, since this product is a breathable HDPE shade designed for sun protection and moderate weather rather than complete waterproofing or heavy load support.

Pros & Cons

Pros

• High UV blockage from 200 GSM HDPE gives strong sun protection and reduces heat.
• Sturdy build with stainless steel D-rings and reinforced, double-stitched edges improves longevity.
• Custom measurement from D-ring to D-ring allows a tailored fit for tricky spaces.
• Breathable design reduces wind load and avoids water pooling compared with solid canopies.

Cons

• Size must be carefully specified and some customers find the finished sail smaller than expected, so measure twice before ordering.

Specifications

Material	200 GSM HDPE
UV Protection	Up to 95% blockage
Shape and Size	Triangle - custom 13 ft x 13 ft x 13 ft (D-ring to D-ring)
Permeability	Water and air permeable weave
Hardware	Stainless steel D-rings, reinforced edges, double-layer stitching
Temperature Reduction	Up to 15 degrees cooler under sail
Assurance	3 year assurance included

Our Verdict

For anyone who needs dependable sun protection and a cooler outdoor area without a permanent build, this custom triangle shade sail is good value and performs well. Its strong UV blocking, durable fittings and breathable fabric make it a practical solution for patios, porches and pet areas, provided buyers carefully confirm measurements to avoid a sail that feels smaller than expected.

Frequently Asked Questions

Is this sail waterproof?
It is water permeable rather than fully waterproof, so it prevents pooling but will not keep out heavy rain like a solid tarp.

How should I measure for a custom fit?
Measure from D-ring to D-ring at each corner and allow recommended corner gaps so the sail can be tensioned correctly.

Will it withstand wind?
The breathable HDPE weave reduces wind load and the reinforced edges help, but it is not a permanent rigid structure; remove or lower tension in severe storms.