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What is the best parameters to use in estimating the manhours of a structural steel detailing particular project ?
I was using my 'per assembly manhours consumption' as my basis in estimating projects, and I'm just curious what the professional estimators are using.
wai wrote:Based on some 19 years of preparing steel details it works out at approximately 16 to 20 hours per tonne.
Garry wrote:wai wrote:Based on some 19 years of preparing steel details it works out at approximately 16 to 20 hours per tonne.
I'd love to be able to charge out that much! You must be rolling in money??? Only joking Wai
OMG-det wrote:I have worked on various projects from Infrastructure, Commercial, Industrial, Domestic, High rise etc, from 20 tons to 6000 tons and in my limited experience pricing per ton is best used as a check (or for mining work). I think there are 3 main variables affecting a tonnage rate 1) Complexity, 2) Steel guage (weight per member) & 3) Repetitiveness. Of course there are many other factors which will affect the pricing but I think these are the main ones. You would need to work out a formula based on these factors and your costs to get an accurate figure.
Sorry to be so unhelpful but it can be complex.
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