Heavy Duty Triple Extension Ladder
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At a Glance
Certified to: EN131 Professional
Maximum Load: 150 kg
Material: Aluminium
Number of Sections: 3
Rung Type: D-Shaped
Stabiliser Bar: Yes
Use Type: Heavy Duty / Industrial
Sizes: Up to 10.0 m extended
Guarantee: Lifetime
Full Product Overview
The Heavy Duty Triple Extension Ladder is built for environments where strength, stability, and durability are essential. Manufactured from reinforced box-section aluminium and certified to EN131 Professional standards, this ladder is suited to construction sites, industrial maintenance, roofing, and other demanding applications.
Its triple-section design offers extended reach while folding down to a manageable stored height for transport and storage. Robust stiles and heavy-duty locking hardware help maintain rigidity and stability throughout the ladder’s working range.
Sizes & Dimensions
| Ladder Size (Stored → Extended) | No of Rungs | Weight (kg) | Stored Height (m) | Max Extended Height (m) | Max Standing Height (m)* | Working Height (m) |
|---|
| 2.5 m → 5.5 m | 3 × 8 | 19.1 | 2.45 | 5.23 | 4.48 | 6.23 |
| 3.0 m → 7.0 m | 3 × 10 | 23.6 | 2.93 | 6.92 | 6.17 | 7.92 |
| 3.5 m → 8.5 m | 3 × 12 | 27.6 | 3.46 | 8.48 | 7.73 | 9.48 |
| 4.0 m → 10.0 m | 3 × 14 | 31.6 | 4.04 | 9.66 | 8.91 | 10.67 |
Standard Dimensions (Applies to All Sizes)
Largest Ladder Section Width - 475mm
Smallest Ladder Section Width - 337mm
Space Between Rungs - 280mm
Additional Dimensions by Size
| Ladder Size (Stored → Extended) | Stabiliser Width | Individual Section Depth | Full Ladder Depth |
|---|
| 2.5 m → 5.5 m | 1000mm | 74mm | 200mm |
| 3.0 m → 7.0 m | 1200mm | 74mm | 200mm |
| 3.5 m → 8.5 m | 1200mm | 87mm | 230mm |
| 4.0 m → 10.0 m | 1200mm | 87mm | 230mm |
Choose ladder size based on required working height — avoid over-reaching.
Safe Use Height Guide
Key Benefits
Engineered for heavy-duty use
Designed for demanding industrial and trade environments.
Stable and secure at height
Wide stabiliser bar improves base contact and reduces sideways movement.
Confident climbing
Serrated D-shaped rungs provide secure footing and improved comfort.
Robust section control
Galvanised steel locking catches hold ladder sections firmly in place.
Built for longevity
Heavy-duty box-section aluminium stiles resist flex and deformation.
D-Shaped Rungs vs Square Rungs
D-shaped rungs provide a wider, more supportive footing than traditional square rungs, helping to reduce foot fatigue and improve comfort during prolonged use at height.
Final Verdict
A robust, industrial-rated triple extension ladder designed for demanding professional environments.
With EN131 Professional certification, size options up to 10.0 m, heavy-duty construction and comfort-focused design, the Heavy Duty Triple Extension Ladder delivers reliable performance and long-term durability where strength and stability matter most.
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