box beam

noun

1. a beam or girder built up from shapes and having a hollow, rectangular cross section.

box beam

noun

1. another name for box girder

Example Sentences

He disassembled the box beams on the ceiling of the living and dining rooms and flipped them over to expose unspoiled wood.

From Los Angeles Times

Monday, 15th May.—Supply in one or more contracts of not less than 20 beams of 400 ironbark or box beams for cattle pits, delivered at any station.

From Project Gutenberg