A thin, narrow strip, fastened to the rafters, studs, or floor beams of a building, for the purpose of supporting a covering of tiles, plastering, etc.
Microscopic, needle-like crystals, usually of plagioclase feldspar, in a glassy groundmass
to cover or line with laths
The visible underside of an arch, balcony, beam, cornice, staircase, vault or any other architectural element.
The top point of the inside open section of a pipe or box conduit.