During tender stage, time is often at a premium and various early assessments are required to be made to enable a subcontractor to produce a tender price in time for bid submission. The attached spreadsheet performs a budgetary function to analyse the hook time and ultimately determine how many tower cranes are required over a given programme period, to then allow a price to be obtained from specialist in the market. The entry data is relatively simple and is made up of 2 sheets within the Excel file.