What was the width (beam) of the Titanic?

The Titanic’s beam was 92.5 feet (92 feet 6 inches). Beam is the shipbuilding term for a vessel’s maximum width, measured across the hull rather than along its length.

The figure can appear as either 92 feet or 92.5 feet because technical references use different measurement conventions. The moulded breadth, excluding the thickness of the outer hull plating, was 92 feet. The extreme breadth, including the plating, was 92 feet 6 inches—the precise measurement represented by 92.5 feet.

Titanic was 882 feet 9 inches long, making its width roughly one-tenth of its length. The ship’s enormous dimensions helped make it the largest passenger liner in service when it entered service in 1912, though its sister ship Olympic was almost identical in size. A common mix-up is confusing beam with depth or draught: beam describes width, draught describes how far the hull extended below the waterline, and overall length describes the distance from bow to stern.