I have got some aluminum mobile scaffolds of 12 meter height (size- 1.5 meter X 2.5 meter) and have used outriggers (04 nos at each sides) to support this structure. Initially the scaffold was erected for a single platform concept with 240 kgs SWL. But now due to the workplace demand, the contractor has proposed for having multiple platforms at every 2 mtr height difference on the same structure with a load capacity of 540 kgs and they have support from their local vendor. My question is, up to what height a mobile aluminum scaffold is safe to use and such above mentioned alteration are allowed & safe?. I have seen no markings on the structural components nor the caster wheel they used in this scaffold. I appreciate if anyone could advise me with some guidelines especially on mobile aluminum scaffold erection and usage?

Thanks RP, could you let me know by referring which standard or guideline, i would get more info about mobile aluminum scaffolds, especially its base ratio, permissible height etc..

Hi, I have been a scaffolder for over ten years and I would not erect an aluminium mobile scaffold @ 12m in height! Anything of this scale should be designed and erected by a competent advanced scaffolder, and preferably not aluminium. With alu scaff, always refer to the manufacturers specs, but if unsure, use the 3:1 smallest base to height ratio. If it is designed, fare enough. I have built mobiles 12 meters high out of tube and fitting, but this causes issues with moving 'the mobile' but if built correctly there is no risk surrounding stability. Like Finn says...why scaffold? Regards, Darach