Construction quotation

Can someone explain the details about "grey structure". What all is/should be included in grey structure and what else will be required to complete the house?

I need a quotation also for grey structure - covered area approx 4000 sq ft. (double story house) in cda zone 5 - zaraj housing society.

Grey structure includes the finishing of the house upto plasters.Rest u have to complete it by yourself.

There are terms which are only in pakistan or probably in usa but i have never heard "grey structure" Please explain in details. Thanks. Saeed