What Does It Mean Transomed?

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. Transom or transom window is also the customary U.S. word used for a transom light, the window over this crosspiece.

What is meant by transom?

1 : a transverse piece in a structure : crosspiece: such as. a : lintel. b : a horizontal crossbar in a window, over a door, or between a door and a window or fanlight above it. c : the horizontal bar or member of a cross or gallows.

What does a transom do?

Transoms historically were used to allow passage of air and light between rooms even when doors were shut. They make perfect sense in row houses, which typically have long, narrow floor plans with windows only at the front and back.