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Over 24,000 unit costs provide you with cost coverage for all aspects of construction -- from sitework and concrete to doors and painting. The 2021 ProEst Costbook is broken down into material and labor costs to allow for maximum estimating flexibility and accuracy. You'll find ProEst Costbook data invaluable when preparing detailed estimates and bids, checking prices, and calculating the impact of change orders. What's more, you'll get detailed man-hour tables that let you see labor costs based on standard productivity rates.