Depending on the type of wood and other specifications, a permanent wheelchair ramp used to reach a height of 30 inches (30 feet long) can cost between $3,500 and $8,000, or between $100 and $250 per linear foot.
A turnkey contract is a business arrangement in which a project is delivered in a completed state. Rather than contracting with an owner to develop a project in stages, the developer is hired to finish the entire project without owner input.
A stipulated sum, also known as a lump sum contract, shifts all liability for costs from the client to the contractor. For this reason, when submitting a bid, the contractor generally builds in a large markup to accommodate unforeseen expenses. In most stipulated sum contracts, the contractor also agrees to a specific schedule, a system of management reporting or a quality control program. If the contractor bids low to win the bid, he may lose money on the contract unless he exercises strict control of time and expense.