Custom Size 11ft x 13ft x 17ft Right Triangle Sun Shade Sail - UPF50

In this review the focus is a custom right triangle sun shade sail designed for patios, play areas, and commercial outdoor spaces; the single biggest reason to buy is the combination of high sun protection and a tailored fit. The reviewer found the shade sail useful for anyone needing a large, made-to-measure canopy that blocks most UV and meaningfully cools the covered area, while still allowing airflow. Installation is straightforward for a DIYer comfortable with measuring D-ring to D-ring and mounting to posts or building anchors.

Key Features

• 95% UV protection: The 200 GSM HDPE fabric blocks up to 95% of harmful UV rays, helping protect skin and outdoor furnishings.
• Temperature reduction: The sail can lower temperatures by as much as 15 degrees under the canopy, creating a noticeably cooler seating area.
• Custom sizing: Made to order from D-ring to D-ring so the 11' x 13' x 17' triangle fits specific mounting points and avoids awkward gaps.
• Durable construction: Stainless steel D-rings, reinforced edges and double-layer stitching increase longevity and resistance to fraying at attachment points.
• Breathable and water permeable: The fabric sheds some water while allowing air to pass, reducing wind stress and creating more comfortable shade.
• Flexible installation: Can be attached to trees, posts, roofs or walls using common mounting hardware and adjusted with recommended corner gaps for best tension.

Who It's For

The shade sail is best for homeowners, small business operators, and property managers who need a large, tailor-made canopy for patios, playgrounds, or outdoor seating areas and who prioritize sun protection and airflow over full waterproof coverage. It suits DIY installers who can measure precisely from D-ring to D-ring and have suitable anchor points such as posts, trees or building fixtures.

It is less suitable for people who expect a fully waterproof tarp or who cannot perform or pay for careful installation; also those seeking a rigid, framed awning should consider other shade systems since this product is a tensioned fabric sail that needs proper anchoring and occasional maintenance.

Pros & Cons

Pros

• High UV blockage with 95% protection keeps shaded areas cooler and safer from sun exposure.
• Custom sizing ensures a close fit to irregular layouts, reducing sag and visual gaps.
• Sturdy hardware and reinforced seams improve durability and resist fraying at stress points.
• Breathable material lowers temperature without trapping heat, preserving comfort on hot days.

Cons

• Durability reports are mixed over long outdoor exposure, so longevity can vary by climate and care.
• Not fully waterproof; it is water permeable, so it does not replace a rigid, rainproof canopy.

Specifications

Product shape	Right triangle
Size (D-ring measurements)	11' x 13' x 17'
Material	200 GSM HDPE
UV blockage	Up to 95%
Temperature reduction	Up to 15 degrees
Edges and hardware	Reinforced edges with stainless steel D-rings
Warranty	3-year assurance included

Our Verdict

For anyone who needs a large, made-to-measure shade sail that prioritizes sun protection, airflow and a clean look, this custom right triangle sail is a good value: it blocks most UV, meaningfully cools covered areas, and arrives with reinforced fittings and a three-year assurance. Buyers who need full waterproofing or guaranteed multi-year performance in harsh sun should weigh climate and care factors before ordering.

Frequently Asked Questions

Is this sail waterproof?
It is water and air permeable, so it sheds some moisture but is not a fully waterproof tarp.

How should I measure for a custom fit?
Measure from D-ring to D-ring for each side; the sail is made to those specifications and may be adjusted slightly at installation.

How durable is the fabric outdoors?
The 200 GSM HDPE and reinforced stitching provide solid durability, though customer reports vary with some noting over a year or more of service while exposure and maintenance affect lifespan.