This manual is a guide to the cost of installing electrical work in buildings. It lists costs to the electrical subcontractor for a wide variety of electrical work.
Before using any estimate in this book, you should understand an important point about estimating electrical construction costs. Estimating is an art, not a science. There is no estimate that fits all work. The manhour estimates in this book will be accurate for many jobs. But no two crews will complete all tasks in exactly the same time. And no two jobs are identical. That's why electrical cost estimating requires an exercise of judgment. Every estimate has to be custom-made for the job, the crew and the contractor. No estimating reference, no computerized cost estimating system, no estimating service can consider all the variables that make every job unique.
This book is not intended as a replacement for well-informed judgment. But when supplemented with an estimator's professional evaluation, the figures in this manual will be a good aid in developing an informed opinion of the cost of electrical systems.
The labor hours in this book are intended to be typical of what a trained and motivated journeyman electrician with five years of experience will do on most jobs. Of course, it's assumed that the installer can read and follow plans and specifications and has the ability to lay out the work so that it complies with the code.
It shouldn't make any difference whether the work is in a hospital, a grocery store, a wood mill or a small convenience store. An experienced journeyman electrician should be able to handle the work at the rates shown here even though the materials and code requirements differ. But you'll have to make allowances if your installers are familiar with residential work only, and the job at hand is something else.