I have no doubt your client wishes you to perform this rework at no cost to him.

Are you providing these supports installed? Who provided the drawings, and who provided the information contained on those fabrication drawings? Are these supports, in fact, per the drawings?

If your agreement is to provide and install complete, you might be on the hook. If you correctly fabricated components from the information provided and the components are not fit for use, this is the fault of whoever provided you with the information.

Were doing building construction the typical drawing was issue by client. The steel support accordance to the issued drawing

Without knowing the details, there's not much advice to give.

Is the print right? Are the parts fabricated per the print? Is the installation done properly? Is the supplier at fault? Is the fabricator at fault?

You, and the customer, will have to decide who is at fault, and then it's up to you to find a way you can make him (the customer) happy.

The company that supplied/produced the drawing would normally be responsible.

I looked up IFC, it looks like some scary thing dreamed up by the IAI, scary because anyone who hasn't learned it will probably misuse it.

http://www.graphisoft.com/support/ifc/References/ifc_int.html

I agree with passingtongreen on this: looks like LOTS of opportunity for errors.

IFC means "Issued For Construction" That means that the Engineer/Designer Approved it for Fabrication and in most cases the Client also Approved it.

So look at the "Approval" signatures on the Drawings and maybe the Client is responsible for all costs for fixing the problem.

IFC may be also be a TLA for Internet Football Club, International Ferret Congress, Idaho Film Collective, In Flight Calibration, Illinois Fencing Club, or Industrial Fluid Consultants.

However, Issued For Construction makes as much sense as the one offered by passingtongreen. Either way, as he said, drawing errors are usually the responsibility of the producer of the documents/drawings.

the vast majority of these types of mistakes is the fault of the fabricator.

The issue know, the client claim that the typical drawing shouldn't follow because of this mistake instead do the actual measurement prior to fabrication I feel something wrong if the typical drawing cannot be use. Why they issuing IFC drawing if cannot be follow, anyway all my steel support been fabricate any error or rework client will be back charge

write down and charge for all the man hours needed to fix the problem.. charge for the materials you supplied, including the use of welders, cutting torches, equipment, tools, ect. he will want a break down of the hours and time for every seperate charge along with the the cost of each operation and renal of equipment.

we refer the bill as a " back charge" to the fabricater,general contractor or the person who was responsible for the mistake.

contact the the appropriate person before starting the job and tell him he will be back charged for the extra work.

revised drawings would be nice, but i doubt if they'll redesign it.

Don't forget to post a lien against the client for any extra expense incurred.

always get your money first!

This sounds like a variation that you should be able to charge for per your contract bill of rates.

Has this error stopped the job?

Can you keep working while negotiating the variation?

How big is the job and how much will it cost you to remedy.?

Everything is relative.

The IFC is a tool !! So the use of it , is the responsibility of the user....

Like with any other tools (computers,Calculators,Hemmi Rules ,etc)

What was time when you went to do this and what was ambient temperature? Thinks made in West/cold countries according to drawings tend to expand in East(Middle east/India/pakistan etc). They will not necessarily fit. Try do this between 1 am~4am.

Send me $ 100,000/- for my advice if I am right.