These are three measures of length that were in use until the implementation of the metric system during the French occupation (1795-1813).
- Duim (thumb): about 2.5 cm/1″
- Voet (foot): about 30 cm, about 11.8″
- Roede (rod): around 3.6-4 meters (11’10”-13’1.5″).
The exact size depended on the time and place. In general there were 12 duimen in a voet and 12 voeten in a roede, but a roede could have as many as 20 voeten.