Over time, they added planks  to the log boat base using the clinker,  or "lapstrake," technique, meaning the planks overlapped and were fastened to each other  along their edges.
Com o tempo, eles adicionaram ripas na base dos barcos de madeira usando a técnica "casco trincado", no qual as ripas se sobrepõem e são presas umas às outras ao longo de suas bordas.