My basic format for determing fees is to calculate a design fee based on an agreed-upon scope of services at the time the client wants to go forward with the project. In addition to the design fees, a mark-up is also charged on the wholesale cost of materials used for the project. Contractors such as the cabinet maker, tile layer, electrician, plumber, etc. are referred by, but not hired by the interior designer.
All reimbursable expenses such as blueprinting, delivery, etc., are billed at cost plus a reasonable markup for handling. Detailed backup is provided with each reimbursable invoice.