Explanatory notes
… of building, etc., in the form of assembled goods or as recognisable unassembled pieces (e.g., prepared with tenons, … door or window frames), whereas the term " carpentry " refers to woodwork (such as beams, rafters and roof struts) … The interstices may be packed with sound‑insulating or heat‑resisting materials (e.g., cork, glass wool, wood pulp, …