Canvas Galore
I had a 260 and now have a 240 so, I'm familiar with your questions. The companionway is the opening to go from the cockpit into the cabin, and this canvas covers the opening including the sliding hatch on top. Dodger goes on this opening with the sliding hatch, popped up, which increases your headroom below, but cuts down on your deck space. Bimini is an awning with metal supporting bows and rails, but usually can be rolled up into it's boot cover and stowed. The 260 with stern seats or not take different installation rails