"Isle of Lewis" is a further development of and ' design with a fully enclosed car deck. The car deck is accessed by bow and stern ramps, the latter being offset from the centre of the ship to accommodate the linkspan in Ullapool. The bow ramp is a folding design that is watertight and further protected by a conventional upward hinging bow visor. The bow ramp was originally off-set to suit Stornoway's original linkspan until new facilities opened in April 1997. During an overhaul at Greenock in 2016, the bow ramp was changed to be off-set to port in order to prepare her for her new role as the summer Barra ferry, to make berthing in Oban easier.