Huttig Building Products, formerly known as Huttig Sash & Door Company, is a distributor of millwork, building materials and wood products to residential and commercial customers. Operational for more than 120 years, the company offers fasteners, patio doors and windows, frames, railings, fences, vinyl siding, trim boards and ceiling products. It provides products from various brands, including CertainTeed, GAF Materials Corporation, KOMA, ELK Premium Roofing and Johns Manville. Huttig Building Products operates more than 30 distribution centers that offer services in over 40 U.S. states. The company provides home improvement, construction, product design and development, market analysis, molding and manufacturing services. It designs and conducts corporate events and shows. Huttig Building Products maintains a location in Indianapolis.