16-20 ft Extension Ladder
The 16-20 ft extension ladder is the most common size in residential and light commercial work, designed for gutters, second-storey windows, and standard residential roofs. This size class bridges the gap between smaller single-storey access ladders and the taller extension ladders used for multi-storey buildings. Models in this band are offered by Louisville Ladder and Werner, with load capacities ranging from 200 to 375 kg and maximum working heights of 16 to 18 ft.
Cat classes
Elija una clase de tamaño — la capacidad y el alcance varían en la gama.
Especificaciones clave
| Especificación | Rango típico | Qué significa |
|---|---|---|
| Max height | 16–18 ft (4.9–5.5 m) | Maximum safe working height when fully extended; determines whether second-storey access is achievable. |
| Load capacity | 441–827 lb (200–375 kg) | Combined weight of user, tools, and materials the ladder is rated to support; Type I (250 lb), Type IA (300 lb), and Type IAA (375 lb) ratings are common. |
| Extended length | 16–20 ft (4.9–6.1 m) | Overall ladder length when both sections are fully extended; storage and transport dimensions are approximately half this length when nested. |
Cómo elegir
The 16-20 ft extension ladder is the standard choice for single-storey eaves, gutters, and second-storey windows on typical residential structures. When work requires reaching only first-floor rooflines or exterior lights below 12 ft, the Up to 16 ft Extension Ladder is lighter and easier to position. For taller residential roofs, three-storey buildings, or commercial façades above 18 ft, the 20-26 ft Extension Ladder provides the necessary reach without over-extending this size class beyond its effective height.
Lo que maneja este tamaño
- Cleaning or repairing gutters on single-storey homes with standard eave heights
- Painting or caulking second-storey windows and trim
- Accessing residential roofs with ridge heights between 14 and 18 ft
- Installing or servicing exterior lighting and security cameras on two-storey buildings
- Performing minor masonry or siding repairs at second-floor level
- Accessing HVAC equipment mounted on low commercial rooftops
Seguridad y operación
- Extension ratio and setup angle (typically 75.5° or 4:1 base-to-height ratio) are critical for stability; over-extension reduces structural integrity
- Overlap between base and fly sections must meet manufacturer minimums, typically 3-5 rungs depending on extended height
- Surface contact at both base and top is essential; uneven ground or inadequate wall support increases tip-over risk
- Three-point contact should be maintained during climbing; tools and materials are carried in pouches or hoisted separately to preserve balance
Transporte y logística
- Fits in full-size pickup beds or on roof racks when nested; typical collapsed length is 8-10 ft
- Single-person carry is possible but awkward; two-person carry is standard practice for distances beyond a few metres
- Weight typically 15-25 kg, allowing manual loading onto truck racks or ladder clamps without mechanical assistance
Alimentación
- No power or fuel required; extension ladders are non-powered access equipment
- Work performed from this ladder may require corded tools supplied by separate generators or building power
Preguntas frecuentes
What is the effective working height difference between a 16 ft and 20 ft extension ladder?
How does load capacity rating affect ladder selection within this size class?
When is a 16-20 ft extension ladder too short for residential roof access?
Comparar modelos populares
Buscar por especificación →Normalizado a las mismas unidades. Un guion significa que el valor no fue publicado.
| Modelo | Altura máx | Capacidad de carga |
|---|---|---|
| Louisville Ladder AE2120 | 16.2 ft (4.9 m) | 661 lb (300 kg) |
| Louisville Ladder AE2220 | 17 ft (5.2 m) | 661 lb (300 kg) |
| Louisville Ladder AE3220 | 17 ft (5.2 m) | 551 lb (250 kg) |
| Louisville Ladder AE4220PG | 17 ft (5.2 m) | 496 lb (225 kg) |
| Louisville Ladder DXL2120-24 | 16.9 ft (5.2 m) | 551 lb (250 kg) |
| Louisville Ladder DXL2220-20 | 17 ft (5.2 m) | 496 lb (225 kg) |
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Fuentes
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16-20 ft Extension Ladder
22 modelos · Cada especificación citada a la fuente
