NAVFAC P-405, SEABEE PLANNER'S AND ESTIMATOR'S HANDBOOK (OCT 1996)., The Seabee Planner's and Estimator's Handbook is a technical GUIDE for planning and estimating construction projects undertaken by the Naval Construction Force (NCF). The handbook provides information on estimating construction work elements and material quantities, including equipment and manpower requirements. Prepared by Seabees for Seabees, the handbook is specifically for use in typical Seabee construction projects, and is designed for flexible application to projects of varying size, scope, and conditions. Tables for estimating labor have been provided to show the number of man-hours required for each work function. Diagrams illustrate the functions of planning and estimating. Both tables and illustrations have been made as useful, accurate, and comprehensive as possible.