Book excerpt: This text provides a comprehensive look at how to estimate electrical wiring for residential and commercial buildings with extensive discussion of manual vs. computer-assisted estimating. Each chapter focuses on a specific component such as the estimating process, labor units, estimate recap, bid processing and bid analysis, as well as contracts and proposals. Case studies, blueprints, a price and labor unit catalog and typical estimating forms provide real-world examples. Learning is reinforced through chapter objectives, summaries and review questions.