Wausau Supply was founded in 1947 with a commitment to service customers with quality building products. Serving authorized r ... etailers in twelve states, Wausau Supply distributes building materials from the industry's leading manufacturers including LP SmartSide, CertainTeed, Owens Corning, Schlage, Simpson, TimberTech, Azek, Mid America, and DAP. Wausau Supply also provides unique value-added services including a complete line of custom finished interior and exterior doors, engineered wood products, and custom finished siding. No matter the success, our philosophy has remained the same...a commitment to serve customers in a way others can't, with the best building products the industry has to offer. read more