Commercial Takeoff Validation

I am finalising a commercial project and already have a contractor-prepared BOQ for concrete, rebar, structural steel and a handful of minor items. Before I lock anything in, I need a fresh set of eyes... (Budget: ₹5000 - ₹5100 INR, Jobs: AutoCAD, Building Architecture, Building Information Modeling, Civil Engineering, Construction Management, Excel, Project Management, Quantity Surveying)