13ft x 21ft Blue Right Triangle Sun Shade Sail Canopy - Heavy Duty
13ft x 21ft Blue Right Triangle Sun Shade Sail Canopy - Heavy Duty
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In this review the reviewer evaluates a custom size 13ft x 21ft x 24.7ft blue right triangle sun shade sail designed for residential and commercial outdoor spaces; the bottom line is that this shade sail is for anyone who needs broad UV protection with durable, heavy duty material. The review finds the standout reason to buy is the thick 190 GSM virgin HDPE fabric treated with a UV stabilized compound that resists fading and tearing while blocking up to 95% of harmful sunlight, making it a practical long-term shade solution.
Key Features
- 190 GSM Virgin HDPE: The thick, non-recycled fabric is built for longevity and resisted accelerated UV lab exposure for extended outdoor life.
- UV Stabilized Compound: The fabric was treated to prevent drying and fading so it keeps its appearance and strength under sustained sun exposure.
- 95% UV Blockage: The woven structure significantly reduces sunlight and temperature in shaded areas, improving comfort at patios and pools.
- Breathable Design: Air and water flow through the fabric to prevent water pooling, so the sail performs in sun and rain without extra maintenance.
- Reinforced Construction: Double layered sewn edges and heavy stitching at corners with stainless steel D-rings make attachment points durable for hardware.
- Warranty: A 3 year limited warranty covers the sail under normal weather and usage, offering buyer reassurance.
Who It's For
This shade sail is aimed at homeowners or small commercial users who want a long-lasting shaded area over patios, balconies, carports or pools and need a custom right triangle shape to fit a specific layout. It suits climates with strong sun exposure where material durability and UV resistance are priorities.
It is less suitable for buyers who need a full installation kit included, since hardware and cable rope are sold separately (the manufacturer advises against nylon rope). Also, those seeking a lightweight or temporary fabric may prefer a thinner, lower GSM sail.
Pros & Cons
Pros
- High quality 190 GSM virgin HDPE provides superior durability compared with recycled fabrics.
- Blocks up to 95% of UV, noticeably cooling and shading outdoor spaces.
- Breathable weave and sturdy seams reduce maintenance by preventing water pooling and fraying.
- Stainless steel D-rings and heavy stitching make hanging secure when paired with proper hardware.
Cons
- Installation hardware is not included, so an additional purchase of appropriate kits and cables is required.
- The heavy-duty material is less suited to applications where a temporary or ultra-lightweight cover is desired.
Specifications
| Shape | Right triangle |
| Size | 13ft x 21ft x 24.7ft (custom size) |
| Color | Blue |
| Material | 190 GSM 100% virgin HDPE |
| UV Protection | Up to 95% UV blockage |
| Warranty | 3 year limited warranty |
| Attachment | Stainless steel D-rings with reinforced stitched corners |
Our Verdict
This 13ft x 21ft blue right triangle shade sail is a solid value for anyone needing dependable UV protection and a durable, attractive canopy for patios or pools. The heavy 190 GSM virgin HDPE and reinforced corners make it a practical long-term choice when paired with quality hardware, and the 3 year warranty adds confidence for regular outdoor use.
Frequently Asked Questions
Does this sail include mounting hardware?
No. Installation hardware kits and suitable cable rope are sold separately and are required for proper installation.
How much UV protection does the fabric provide?
The woven fabric is rated to block up to 95% of harmful UV rays while remaining breathable.
Is the material resistant to fading?
Yes. The 190 GSM virgin HDPE is treated with a UV stabilized compound to resist drying, tearing and fading under sun exposure.
Editor's Take
This 13ft x 21ft blue right triangle shade sail delivers durable UV protection with 190 GSM virgin HDPE, reinforced corners and breathable fabric, making it a good long-term value when paired with proper hardware.

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