I understand that the Contractor is paid their defined cost under main Option D, and not against the tendered bill rates v quantity as per main Option B. However, I would like clarification on the general remeasurement rules within Option D.
Simply put for an example, if the bill of quants says 10m3 of concrete, yet when the work is undertaken 11m3 of concrete is poured (bill measurement not 100% accurate), does the Total of the Prices (target cost) get adjusted by the bill rate for this additional m3? And the same for each other bill item. Or, does the Total of the Prices not change and therefore the target is not altered. I appreciate there are clauses such as 60.4 (0.5%) and 63.13; however I’m not concerned with CE situations rather just the exact accuracy of the measurement and how this is adjusted once the finished work provides the actual quants.
I was of the understanding the Contractor is paid his actual (defined) cost, yet all the works are remeasured as per Option B, so to determine the actual Total of the Prices.
Various papers seem to have different guidance.