I need your help

Dear Jack,

It would be much more benefitial if you get a copy of your contract documents and especially the BOQ and sit with your Project Team and start building you Program of Works.

With kind regards,

Samer

Usually design schedules if outsourced are based on contract milestones for design phases such as Conceptual Design, Preliminary Design, 60%, 90% & 100%, details might vary. But if you do in-house design then you got to get into the details. I am from the civil contracting business but at very few times we end up doing some works at pharmaceuticals, chemical or for the couple of petro at the island. I know some mechanical estimators use Gulf Publishing Books as a reference. The following might provide you some help or at least a link where to search for more appropriate references.

http://www.gulfpub.com/product.asp?PositionID=cart&ProductID=2706&Catalog=GPS&results_per_page=10&search=plant design&SearchTypeID=&SearchInterestID=&PageMove=3

http://yirfan.blogspot.com/2009/01/yim318-conceptual-cost-estimating.html

Best regards,
Rafael