I have scarfed post bottom repairs on several occasions, I have even done so while working for a timberframer who was also an engineer. In most cases I have been able to do the cutting on the post when the frame is disassembled for relocation. The router jig method mentioned by Scott McClure works very well, and can be followed by a chain saw using EDM tracer guides as well. Moisture problems can be reduced by coating both halves of the scarf with end sealer before final assembly. I realize that most clients have a limited budget. Compared to the cost of stainless steel hardware, joinery solutions are a reasonable option. Tom


Note, I did not use templates or a jig to cut these two scarfs, the center post was replaced (it's easier to cut a tenon than a scarf) Tom