What does a frame represent on a ship?

A frame on a ship specifically refers to the structural components often described as transverse ribs. These frames provide essential strength and support to the hull, aiding in maintaining the vessel's shape and integrity. They run perpendicular to the keel and are vital in distributing stresses caused by waves, cargo, and other forces acting on the ship. The design and placement of frames are crucial for the overall structural stability of the vessel, ensuring it can withstand the harsh marine environment.

The other options describe different parts of a ship's structure or features. Vertical support beams fall under a different category, typically known as girders or longitudinals. The sections of the main deck refer to the horizontal surfaces rather than the frame’s structural role. Lastly, storage areas for equipment serve a functional purpose but are unrelated to the concept of frames, which focus on the hull's construction and support. Each of these plays a role in the overall design and functionality of a ship, but they do not define what a frame specifically represents.