Good evening the great engineers in the house,pls I will love to know the estimate of a decking,in which the floor section is 2unite flat on each flat is 2bedroom flat and the upper section is a hall that will be using for an event center,though I was not the person that started the building,so I don't know the measurements of the area ,the client just wanted me to continue it from the decking and he is asking for d estimate, thanks in anticipations.