17ft x 18ft x 24.8ft Right Triangle Sun Shade Sail - 95% UV Block

In this review the reviewer looks at a custom-size right triangle sun shade sail intended for patios, play areas, and commercial outdoor spaces. The bottom line: this sail is for anyone who needs a large, tailored canopy that prioritizes sun protection and cooling over full waterproofing. It delivers dependable 95% UV protection in a heavy 200 GSM HDPE weave and noticeably lowers temperatures under the canopy, making it a practical choice for shaded seating, playgrounds, or poolside cover when a made-to-measure fit is required.

Key Features

• 95% sun protection: The 200 GSM HDPE fabric blocks up to 95% of UV rays to reduce sun exposure for people and furnishings beneath the sail.
• Temperature reduction: The mesh construction can lower ambient temperature by up to 15 degrees compared with unshaded areas, improving comfort on hot days.
• Custom sizing: Measured from D-ring to D-ring, the sail is made to order so it can match nonstandard corners and unusual mounting points precisely.
• Durable construction: Reinforced edges, double-layer stitching and stainless steel D-rings increase longevity and resist fraying at stress points.
• Breathable, water-permeable design: The sail sheds some water and lets air through, preventing wind lift and pooling while not acting as a full rain canopy.
• Simple installation guidance: The sail installs to trees, walls or poles and recommends at least a 0.5 ft gap from D-rings to poles for best tension and shape.

Who It's For

This right triangle shade sail suits homeowners, small businesses and landscape installers who need a large, customized canopy to create shade without enclosing a space. It is especially useful over patios, seating areas, playground equipment, and poolside lounging where sun protection and airflow matter.

Those who need a fully waterproof awning, a permanent hardtop, or a lightweight temporary umbrella should look elsewhere, since the HDPE mesh is water and air permeable and is designed primarily for sun defense and cooling rather than full rain protection.

Pros & Cons

Pros

• High UV blockage from the 200 GSM HDPE fabric keeps shaded areas safer in strong sun.
• Measurable temperature reduction makes outdoor spaces more usable on hot days.
• Quality reinforcements and stainless D-rings improve durability and resist fraying.
• Custom sizing ensures a neat, tailored fit for awkward or specific layouts.

Cons

• Because it is mesh and water-permeable, it is not a substitute for a waterproof canopy in heavy rain.
• Long-term durability has mixed user reports; exposure to constant intense sun may shorten useful life for some installations.

Specifications

Shape	Right triangle
Size	17 ft x 18 ft x 24.8 ft (custom made)
Material	200 GSM HDPE
UV Protection	Up to 95% blockage (UPF50+)
Permeability	Water and air permeable
Hardware	Stainless steel D-rings, reinforced edges, double stitching
Assurance	3 years included

Our Verdict

For anyone needing a large customized shade that prioritizes sun protection and cooling, this right triangle sail represents solid value due to its heavy 200 GSM fabric, reinforced construction, and precise made-to-measure fit. It is not a waterproof roof but performs well for patios, playgrounds and commercial shaded areas where airflow and UV defense are the priority.

Frequently Asked Questions

Is this sail waterproof?
No. The HDPE mesh is water and air permeable and designed to drain and ventilate rather than act as a fully waterproof roof.

How should I measure for a custom fit?
Provide the D-ring to D-ring measurements you want; the sail is made to those dimensions so corners and attachment points match your space.

How long will it last outdoors?
Construction includes reinforced edges and stainless D-rings with a 3-year assurance, but continuous intense sun can shorten lifespan for some installations.