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What is the maximum height for a mobile scaffolding tower?

BS EN 1004 limits mobile aluminum towers to 8 meters indoors and 12 meters outdoors with proper outriggers and ties. Beyond that, fixed scaffolding is required.

How do you calculate scaffolding load capacity?

Multiply the platform area by the live load classification (light=75 kg/m², medium=150 kg/m², heavy=300 kg/m²), then add the dead load with a safety factor of 1.4.

scaffolding · Engineering Calculator

Scaffolding Load Calculator for 4m Mobile Aluminum Tower

Formula

Safe Load = (Platform Area × Live Load) + (Dead Load × Safety Factor)

Governing Standard

OSHA 1926 Subpart L, BS EN 1004

Required Inputs

Platform dimensions (m)
Number of working levels
Live load classification (light/medium/heavy)
Material type (aluminum/steel)

Output

Maximum safe working load per platform (kg)

Notes

Aluminum mobile towers are limited to light-duty (75 kg/m²) or medium-duty (150 kg/m²) applications. Heavy-duty requires steel scaffolding. Always check manufacturer load ratings.

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