Large supporting beam (6)
I believe the answer is:
girder
(Other definitions for girder that I've seen before include "Structural member" , "Horizontal supporting beam" , "Load-bearing beam" , "Structural metal beam" , "Steel beam" .)
I believe the answer is:
girder
(Other definitions for girder that I've seen before include "Structural member" , "Horizontal supporting beam" , "Load-bearing beam" , "Structural metal beam" , "Steel beam" .)