Electrical Estimating 101

The key to any successful electrical estimate, isshould be as detailed as possible to act as a "memory
organization and preparation! You need to develop ajog" and will ensure that you don't leave out a
system for how you do your take-offs, and how youpotentially costly part of the scope of work that you
tabulate your information. Before doing anything else,will later find yourself responsible for completing out of
read the plans and specifications cover to cover. Aspocket! This is where a commercial electrical
you read, note items of particular impact to theestimating program can be invaluable. The entire
electrical scope on a separate sheet, and hi-light theprogram acts as your "cheat sheet". While pricey, the
corresponding passage right on the specificationbest ones will save you enough time to recover the
documents. I usually note specific requirements,purchase cost very quickly. For links to our top picks,
especially oddball ones directly on the correspondingsee our web site below.
plan sheet(s) as well, before I even start countingThe take-off should be done phase by phase,
anything! Missing a restrictive note in the specificationsfollowing the layout of your estimate "cheat sheet"
can be disastrous.closely. A key trick I use is to hang all the plan sheets
The next step is to develop a "Cheat Sheet" to ensurecontaining schedules, riser diagrams, installation notes,
that you don't miss any items or phases that should beetc. on the wall in front of my estimating table. This can
included. For most any type of estimate this can be astake up a lot of room, but I highly recommend it, as
simple as a full or partial list of CSI codes. List themany times the plan sheets will reference each other
phases that apply to your specific situation, or developor overlap, and you must be able to visualize the
a master list, and then drill down from there. Treat itcross-connections quickly and clearly. If you don't have
kind of like a report outline similar to the ones youthe luxury of that much space, consider making copies
probably did in High School. For example:of key sections of the documents at your local copy
center.
1. General Conditions a) Temporary Electrical Power iOnce again, a commercial electrical estimating program
Temp Service & Panel w/ conduit & wiring,is worth it's weight in gold for your take-offs.
breakers ii Temp Outlets w/ conduit & wiring,Alternatively, you can use a spreadsheet, but you
devices b)Temporary Lighting c) Site Trailerneed to have the work experience and project track
2. Site Work a) Excavation & Fill i Equipmentrecords to allow you to build one. Several examples
Rental ii Trucking Service b) Underground Conduit iare posted on our website to give you an idea of
Transformer to CT Cabinet c) Concrete Encasementwhat you need. If you are interested in learning more
You get the idea. There is NO SUCH THING as tooabout electrical estimating, go to our site and sign up
much detail- remember that. The goal is to itemize allfor the full series on electrical estimating.
the expected costs accurately. The cheat sheet