This outstanding ?answer book? is the perfect professional reference for questions concerning basic building disciplines. The DEWALT? Construction Professional Reference features at-a-glance information on hardware sizing, correct nailing patterns, walls and flooring, doors and door openings, roof pitches, stairway stringers, steel, excavation, masonry, and much more! With illustrative diagrams and construction documents for use on the jobsite, this valuable reference is sure to be an effective tool from the configuration of a job to its conclusion.