Realistic BIM project Costs - Perspective

[bthornton480]

Could you guys provide any insight into what a reasonable / fair price on BIM work within the Electrical trade may be ?

Recently,  I put together a value for BIM services and kept arriving at the same value ( % ).  Not sure if arriving at same value is good thing or not.

Any additional insight,  sure would be appreciated because it kind sure does seem like uncharted waters down here.

My simple stupid logic was :

Mechanical BIM was assumed to be around 1% of contract value ( not sure )  =  1.0 %
Electrically,  we probably have 30 - 40 % more pipework to place ( relative ) = .3%
Difficulty of placing Electrical after duct initially place ( difficulty factor ) = .1%
Model Rework ( equipment changes etc. additional Clash resolution )  = .15%
                                                                       =  1.55 %
Future Scope Revisions = 2% of change.

Rough scope: is Conduit and Racks 2" & larger all JB's in ceilings, all access panels and provide final digital asbuilt.  Time = project duration.

At the end of the day,  does 1.5% seem fair or unreasonable for an owner and project while at the same time not coming up short big time ?

Any insight would be appreciated.  Do you guys see any glaring pitfalls to the above logic ?

[jdcampbell]

That number could vary greatly based on the equipment on the job.  The range you came up with sounds about right from what I've seen on past projects.  We use a percentage of field labor instead of overall contract.  Somewhere around 6-7% of field labor is typical.  This may help you get a quick check to see how that compares with your price based on contract value.  I think there's an old thread on here where others shared their formula.