Archaeologists found four rulers which were used during the ship's construction. Two were calibrated in Swedish feet while the other two were calibrated in Amsterdam feet.
Fornfrøðingar funnu fýra linealir, sum vóru brúktar, tá skipini vórðu bygd. Tvær vóru stillaðar til svenskar føtur, meðan hinar báðar vóru stillaðar til føturnar í Amsterdam.