In architecture, a transom is a transverse horizontal structural beam or bar, or a crosspiece separating a door from a window above it. This contrasts with a mullion, a vertical structural member. [1]

: a window above a door or other window built on and commonly hinged to a transom

Nov 18, 2025 · Transom windows sit over a door or other window on top of a horizontal beam, called a transom. They can be decorative or functional and have been popular since the 14th century.

Sep 17, 2025 · To care for your transom, check it regularly for cracks and peeling seals. If you suspect it's wet, get a professional to take a sample. The transom is the flat, vertical structure at the stern, or …

Oct 25, 2024 · What Is a Transom on a Boat? A transom is a structural component of a boat that is located at the stern, or the back, of the vessel. It is typically a flat, vertical surface that connects the …

Dec 25, 2024 · A transom in construction refers to a horizontal beam or window positioned above a door or window. The primary purpose of a transom is to divide or provide additional structural support, …

TRANSOM definition: 1. a horizontal bar of stone or wood across a window, or separating the top of a window or door…. Learn more.

The transom of a boat is the surface that forms its stern. Her name and port of registration (Jersey) are painted on her transom in navy blue.

The transom is the vertical section at the rear of a boat — the flat or slightly curved surface that forms the boat’s stern. It’s not just a design feature; it plays a significant role in the boat’s structure, …

3 days ago · transom (plural transoms) (architecture) A crosspiece over a door; a lintel. (architecture) A horizontal glazing bar in a window. A transom window. (nautical) Any of several transverse structural …