We are Columbia Aluminum has been dedicated to developing, manufacturing and distributing weather-strip/door components and floor covering products to the building industry. The finest quality materials have been designed for quick and easy installation and a constant evolution is taking place with our products to remain on the cutting edge of current applications and technologies in order to best serve our customers. 

Legacy's product line is solely focused on architectural gasketing, thresholds and other custom solutions that are specifically designed for use in the commercial architectural openings industry.

Randalll Manufacturing has a varierty of door accessories: from door sweeps, thresholds and weather striping, to kick and push plates.

Strybuc offers a variety of door components including thresholds, door bottoms, and weatherstripping.

Worldwide Door Components Inc. specializes in the production of our New 4Ever Frame door jamb and ProT4 aluminum threshold as well as our complete product line of thresholds, door sweeps, watherstrips and aluminum T-astragals.