IFC Drawing

Make sure there is a record of the insistance, then install on the insistence and issue an "as built" drawing.

Install per your agreement. You(or some officer of your company) signed off on the scope of work.

So, do the job properly and change the drawing to reflect what you did.

And why do you hide behind a mask of an anonymous poster. What are you afraid of????

There is, quite likely, a weasel clause in the General Conditions of the contract. Look for it, or ask that it be shown to you.

The clause will reference codes and standards that are to be followed in the project, even if code required components are not indicated as required by the drawings. So, if the clause is there and your firm agreed to it, you are required to do the work at no extra money.

If there is no such clause, you are due extra money for the extra work and material.

Simple as that.

Dear All

The problem with the contract & Approved dwg for construction, The client issued the approved drawing for construction which is not indicated the required component in the scope of works, therefore they required to do the work as per the contract but not in the approved dwg at no extra cost, I'm newbie in costing engr

Please advise,

You have been advised thrice.

Lyn and I have both advised you should do the work to which you are contractually obligated. If the contract documents indicate (either in written text or graphic representation) it is to be done, then it is to be done. Quit looking for an escape and perform the work. If your estimating department made an error of oversight or omission you have to live with it.

If neither element of the contract document indicate it is required, then you are due extra money for work outside the original agreement.