The "Majestic"s were long between perpendiculars and long overall. They had a beam of and a draught of . They displaced up to at full combat load. The ships had a freeboard of forward, amidships, and aft. Their hulls were divided into numerous watertight compartments, with 72 compartments inside the armoured citadel and 78 outside it. A double bottom extended for much of the length of the hull. They were fitted with two pole masts, each with two fighting tops. Except for "Caesar", "Hannibal", and "Illustrious", they had a new design in which the bridge was mounted around the base of the foremast behind the conning tower to prevent a battle-damaged bridge from collapsing around the tower.