Difference between revisions of "Cost estimation"
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A couple of sources indicate that for ship building the materials are roughly half the costs and the labor and overheads are roughly half the cost. This means that we could estimate the costs as simply twice the steel cost. If steel is $1/kg and our structure is 500,000 kg, then a materials cost of $500,000 and a total cost of $1,000,000 could be estimated. | A couple of sources indicate that for ship building the materials are roughly half the costs and the labor and overheads are roughly half the cost. This means that we could estimate the costs as simply twice the steel cost. If steel is $1/kg and our structure is 500,000 kg, then a materials cost of $500,000 and a total cost of $1,000,000 could be estimated. | ||
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| + | This sort of shipyard estimate does not include design costs. It is also just for the structure. Any solar power, engines, kites, sea anchors, furniture, electronics, etc are not part of this. It is also based on large ships. The shipyards overheads will be a higher percentage for a small vessel. | ||
==Links to plate steel prices for ship building== | ==Links to plate steel prices for ship building== | ||
Revision as of 13:33, 27 June 2008
A couple of sources indicate that for ship building the materials are roughly half the costs and the labor and overheads are roughly half the cost. This means that we could estimate the costs as simply twice the steel cost. If steel is $1/kg and our structure is 500,000 kg, then a materials cost of $500,000 and a total cost of $1,000,000 could be estimated.
This sort of shipyard estimate does not include design costs. It is also just for the structure. Any solar power, engines, kites, sea anchors, furniture, electronics, etc are not part of this. It is also based on large ships. The shipyards overheads will be a higher percentage for a small vessel.
Links to plate steel prices for ship building
Links to ship cost estimation
- Maritime Economics by Martin Stopford
- A Practical Approach for Ship Construction Cost Estimating
- Paper on IP issues has materials 60-70% in table 6.1
