Columbia Aluminum has been dedicated to developing, manufacturing and distributing weather-strip/door components and floor covering products to the building industry.

Legacy Sealing Systems for Doors include gaskets, door bottoms, thresholds, saddles, sweeps and stiles.

Door Components from Smith Millwork include a large variety of pre-cut casings, brick mould, interior and exterior door jambs, exterior adjustable door sills and universal sill systems.