ABSTRACT
The Unit Costs in this part represent the net cost to the Contractor of executing the work on site and not the prices which would be entered in a tender Bill of Quantities.
It must be emphasised that the unit rates are averages calculated on unit outputs for typical site conditions. Costs can vary considerably from contract to contract depending on individual Contractors, site conditions, methods of working and various other factors. Reference should be made to Part 1 for a general discussion on Civil Engineering Estimating.
