Right Triangle 13ft x 16ft x 20.6ft Sun Shade Sail - Heavy Duty
Right Triangle 13ft x 16ft x 20.6ft Sun Shade Sail - Heavy Duty
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Our review of this right triangle sun shade sail finds it best suited for homeowners and small commercial spaces that need a durable, no-fuss way to create broad UV protection. The single biggest reason to buy is the heavy duty 200 GSM HDPE fabric and reinforced corners, which deliver reliable shade and long-term resistance to fading and UV damage while still allowing airflow. Installation is straightforward for anyone with existing poles or a roof attachment point, and the finished edges plus stainless D rings make tensioning and keeping the sail neat much easier than cheap alternatives.
Key Features
- Custom corner-to-corner measurement: Curved edges are calculated to keep the sail tight after installation and reduce sagging for a neater appearance.
- 200 GSM HDPE material: Woven, breathable fabric blocks up to 95% of harmful UV while allowing water and breeze to pass through, reducing pooling.
- UV inhibitors and warranty: Built-in UV stabilizers and a 3 year warranty under normal weather give confidence for extended outdoor exposure.
- Reinforced seams and stainless D rings: Double-layer stitched edges and extra stitching at corners increase strength and make attachment to hardware straightforward.
- Flexible installation options: Can be mounted to poles, roofs, trees, or walls and tightened with cable wires and turnbuckles for a clean, tensioned look.
Who It's For
This shade sail is ideal for patio owners, small commercial patios, pet areas and poolside spots where long-lasting UV protection and airflow matter. The breathable 200 GSM fabric suits locations that need shade but also ventilation and reduced water pooling.
Those who need a perfectly square or straight-edged aesthetic without any curve at the edges should request a custom version or consider other products, and buyers who want a very lightweight seasonal cover rather than a heavy-duty installation might prefer a different, thinner option.
Pros & Cons
Pros
- Durable 200 GSM HDPE fabric provides strong UV blocking and resists fading.
- Finished edges and stainless D rings make installation and long-term tensioning reliable.
- Breathable weave reduces water pooling and improves airflow underneath the sail.
Cons
- Standard product edges are slightly curved by design; request custom straight edges if that is preferred.
- Size perceptions vary among customers, so verify required coverage before ordering.
Specifications
| Shape | Right triangle |
| Size (corner to corner) | 13 ft x 16 ft x 20.6 ft |
| Material | 100% 200 GSM HDPE |
| UV Block | Up to 95% |
| Edges | Double-layer reinforced stitched seams with slight curve |
| Hardware | Stainless D rings on each corner |
| Warranty | 3 years (UV degradation under normal weather) |
Our Verdict
The right triangle 13' x 16' x 20.6' sun shade sail is a practical, heavy duty option for anyone needing reliable UV protection with good airflow and minimal maintenance. Its 200 GSM fabric, reinforced corners and 3 year warranty make it a solid value for patios, pet areas and outdoor seating where a tensioned, neat appearance matters.
Frequently Asked Questions
How is the sail measured?
Measurement is taken from corner to corner and the edges are made slightly curved to optimize tension and reduce sag after installation.
Will water pool on this sail?
No, the woven breathable HDPE fabric allows water and breeze to pass through, which helps prevent pooling.
Does it include mounting hardware?
The sail includes stainless D rings and comes with adjustable turnbuckles for tensioning, but additional hardware kits for poles or walls are recommended for best performance.
Editor's Take
A practical heavy duty shade sail with 200 GSM HDPE fabric, reinforced corners and a 3 year warranty; ideal for patios and pet areas that need reliable UV protection with good airflow.

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