The Contract Bill of Quantities in accordance with NRM2 had an Item for Structural Steelwork and listed a number of Structural Engineers drawings which the Contractor had to then insert his price against.in lieu of the PQS quantifying the actual tonnage and the Contractor rating this.
There are two main issues with the listed drawings:
a) The length of some members cannot be ascertained by the drawings listed and
b) Some members are not annotated to state what the size is
In addition to the drawings listed against the Bill of Quantities item there are other Works Information drawings and BIM Model that would assist in resolving the issue.
There are also two comments within the Preliminaries document which appear to conflict::
- “Contractor shall be deemed to have allowed for compliance with all the requirements of these Preliminaries & Works Information which shall apply equally to the whole of the work”
2)’‘That where 3D models have been issued then the 2D drawings shall take precedence’’
The Contractor is stating that only the drawings stated within the Bill Of Quantities item are to be considered and are therefore claiming the additional steel which is now annotated or sections issued to allow the calculation of the length of columns within the revised works information. The PQS on the other hand is only measuring the steel which has changed between all of the Contract Works Information including the BIM Model and the current Works Information.
Any thoughts on who is correct.