Joinery (cleaning dimensioning, drying, surface treatment, etc.)
Real specialists in wood usually have their own joinery woodshop where they can perform some or all of the following specialised operations. They are able (among other things) to correctly dimension and calibrate wooden elements (length, width, and thickness), to saw new connections in the boards (e.g. tongue and groove), to dry the wood to a certain humidity level, and to apply various surface treatments (sanding, planing, etc.).