In dry docking, the weight of a ship is carried almost entirely on the keel and bilge blocks. The keel and keelson provide the means of distributing the pressure on the centre line, and docking keels composed of doubling strips of plate or a heavier plate or built-up girders are sometimes fitted on the bottom at a distance from the centre line corresponding to the best position for the bilge block. The docking keels are fitted in the fore and aft direction, generally parallel or nearly so to the keel.
Kwizibuko elomileyo, isisindo senqanawe sithwalwa phantse ngokupheleleyo kwisiseko senqanawe neziqobo zamazantsi enqanawe. Isiseko senqanawe kunye nomgca oqinisisa umgangatho wamaplanga enqanawe kwisiseko senqanawe sinikeza indlela yokusasaza unyanzelo kumgca osembindini, iziseko zenqanawe ezibukweni zenziwe ngemicu yecangci okanye ngecangci elinzima izixhobo ezakhelwe phezulu zifakwa ngezantsi ukusuka kumgama womgca osembindini olingana nobume obulungileyo besiqobo somzantsi wenqanawe. Iziseko zenqanawe kwizibuko zilinganiswe ngaphambili nangakwicala lesiqu senqanawe, ngokuqhelekileyo ngokufana ncam okanye phantse kwisiseko senqanawe.