How to Design a Vernacular Chair

3 rules. No math.

I know this chair, which lives at St Fagans, as well as I know my own chairs.

When I plan out a piece of vernacular furniture to build, I rarely create a construction drawing. I also avoid using architectural principles such as whole-number ratios – at least consciously.

Instead, during the last 20 years I have developed a way of making chairs that derive…