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

Sep 17, 2025 · On most boats, the transom is the vertical reinforcement at the stern of the boat. There’s definitely a lot of terminology to learn and remember when boating, so we’re here to tell you more …

Nov 18, 2025 · Transom windows are rectangular or semicircular windows installed above doors or other windows that historically provided natural light and ventilation before electricity and air conditioning, …

Oct 25, 2024 · The transom is structurally tied together with the keel and sides of the boat, making it an important part of the vessel’s overall design and construction. While the terms “ stern ” and “transom” …

Transom definition: a crosspiece separating a door or the like from a window or fanlight above it.. See examples of TRANSOM used in a sentence.

An arched top window and door transom, drop-lap siding, half-glass door, cornices and crowns over the openings - all present themselves for admiration.

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.

Apr 22, 2024 · Learn about transom windows from design experts, including their history, types of transom windows, and what installation and replacement cost.

Aug 6, 2025 · Transom windows let in natural light and pack a visual punch. But what is a transom window? Learn about them and if they’re right for your home.