Under-deck tonnage is the volume of the ship below the tonnage deck and measured to the inside of the frames or sparring, in tons of 100 cubic ft.
Ngaphantsi komgangatho womthwalo ivolume yenqanawa engezantsi kumthwalo ometwa ngaphakathi kwifreyim, kwiitoni eziyi100 yeenyawo zetyhubhikhi.