The internal. structure of the cargo tanks, often un-coated, is exposed to potentially. corrosive gases, sea water, crude oil and oil products. The effect of this corrosion over a period of years is to reduce the. material thickness and hence the strength of the structure. Classification.
It will cost $300 to $400 per day to hire a general contractor. Many times, a general contractor will also be a carpenter and do a lot of the work that needs to be done.That is a great help and cost savings to the project.Whether a general contractor will do work on a project depends on their skills and the outlook of the job. If your general contractor does not do any labor he may want 10% to 20% of the cost of the project.If he does the carpentry he will want 45% to 65% of the money paid to contractors on the project.hat is a great help and cost savings to the project. Whether a general contractor will do work on a project depends on their skills and the outlook of the job. If your general contractor does not do any labor he may want 10% to 20% of the cost of the project.
The contractor bids your project for a specific price and that is how much it will cost...in theory. For small, simple projects, you can probably count on this contract to work for you and for your contractor.any general contractors also have their own crew of laborers, for which they charge an hourly rate. Typically the contractor' s crew will be general carpentry trades people, some who may have more specialized skills. Exactly how a general contractor charges for a project depends on the type of contract you agree to.