A practical manual for apprentices and vocational students that presents step-by-step instruction in building work from site layout and foundations through framing, roof construction, exterior cladding, interior finish, and estimating. It explains foundation setting, sills, joists, wall and partition framing, and detailed procedures for common, hip, valley, and jack rafters, extending methods to octagonal and other polygonal roofs by using trigonometric principles and practical shortcuts. Chapters cover sheathing, roofing, stairs, doors and windows, and include drawings, tables, and an appendix with mathematical tools and estimating guidance.