box gutter
A rectangularly shaped wood gutter that is set into and partially below the lower edge of a roof; usually lined […]
General
General
boxed pith
A piece of lumber cut so as to enclose the soft central core (i.e., the pith) within the four faces
General
boxed mullion
A hollow mullion which houses sash counterweights in a window frame; built up from boards so as to provide a