The history of the carpenter trade — from guild to Eurocode

The carpenter builds the house's skeleton, closes it against wind and weather and builds it up on the inside — and the trade has done so for centuries. What has changed is not so much the craft as the foundation under it: the path from experience and rule of thumb to calculated cross-sections, documented materials and standards basis. This article traces that development but deliberately adheres to relationships that can be traced to a source.

Carpenters belonged to the crafts that in the Middle Ages and Renaissance organized themselves into guilds. The guild regulated training and quality through a hierarchy of apprentice, journeyman and master, where the journeyman's piece and master's mark were admission tickets to practise the trade. The carpenter then built entire wooden structures with hand tools and knew each wood's properties — knowledge that was passed on from master to apprentice in practice, not in books.

The master-journeyman-apprentice structure is not just history. It lives on in today's vocational education with alternation between school and apprenticeship — the same idea that the profession is learned by working with it under an experienced qualified person.

With industrialisation many of the carpenter's work moved from hewing their own timber to working with factory-made sawn material. Sawmills and later machine-driven tools made cutting faster and more uniform opening the way for larger and more standardised buildings. Training was gradually supplemented by teaching at technical schools alongside on-site apprenticeship.

En af de regler, der stammer fra denne lange håndværkstradition, er forholdet mellem en trappes optrin og grund. Den blev formaliseret af François Blondel i 1675 som skridtmålsreglen (2 · optrin + grund ≈ 61–63 cm) og bruges stadig som komfortmål, når en trappe sættes op.