“ Narrow boats, ” open wooden vessels about 70 feet [20 m] long and 7 feet [2 m] wide, were built to carry bulk freight, such as coal, lime, limestone, kaolin, iron ore, bricks, and flour.
Selleks et vedada neil kanalitel kivisütt, lupja, lubjakivi, portselanisavi, rauamaaki, telliseid ja jahu, ehitati lahtised puust laevad, mis olid 20 meetrit pikad ja 2 meetrit laiad.