For over 20 years, Lumbermen’s has partnered with Therma-Tru to pre-finish system built doors at their Byron Center, MI location. In 2025, we will be expanding into Minnesota, building on the successful combination of Therma-Tru’s unmatched quality and design, along with Lumbermen’s dedication to craftsmanship, service, and customer success. In addition to Therma-Tru, we offer doors and products from the following brands: