The 2026 BNi General Construction Costbook is the industry’s most trusted and comprehensive estimating guide, delivering up-to-date national average costs for materials, labor, and equipment. Organized according to the latest 50-division CSI MasterFormat®, it features over 15,000 cost units with labor man-hours and includes a wide range of prebuilt assemblies - ideal for speeding up takeoffs and simplifying estimates for common building systems and components.
With over 600 Metro Area Multipliers to adjust for local pricing, this essential resource helps contractors, estimators, architects, and engineers prepare more accurate budgets and competitive bids—from early design concepts to detailed final estimates. Whether you’re estimating individual line items or full assemblies, this book equips you with the data you need to build with confidence.
Get all the information you need in a fully-indexed printed book format. Perfect for those who prefer the reliability and feel of a physical book for learning or reference.