The present disclosure is directed to composite bone grafts and to methods for providing such grafts for orthopedic and other surgical uses in a subject in need thereof. In some embodiments, the present disclosure provides a method for producing a composite bone graft, the method comprising, for example, the steps of: (i) selecting at least one donor site on at least one subject (ii) removing at least one piece of bone, comprising cortical bone, from the at least one donor site (iii) machining the at least one piece of bone to produce at least two bone components, each having a surface comprising at least one of a protuberance and a recess thereon and (iv) joining the at least two machined bone components to produce a composite bone graft.