This is an example of a typical spreadsheet that is used for determining the cost of a project. This particular estimate was for the Neapolitan Sofa Table, Horizon Entry Table, and Purpleheart Mirror and made in 2010. The top section of the spreadsheet details all of the materials needed for construction. The bottom section spells out the amount of time required; sometimes I get this wrong and make less money than anticipated, but that is my risk, not yours. You can see from this example that the sofa table had $1,095.23 in material costs, I estimated 61 hours to complete, the total cost for that piece was $4,450.23 , and the deposit was $2,872.