The Ton-class coastal minesweepers were constructed with wooden hulls and almost all of their structure was made from aluminium to reduce their magnetic signature to aid sweeping magnetic mines. The ships displaced  at standard load and  at deep load. They had a length between perpendiculars of , a beam of  and a draught of .
The Ton-class coastal minesweepers were designed with wooden hulls and aluminum structures to reduce their magnetic signature, making them more detectable by mine sweeping equipment. The ships had a displacement of at full load and at deep draft. Their dimensions included a length between perpendiculars of , a beam of , and a draught of .