The Lemieux Torrefied Collection by Masonite is the first of its kind in the wood door industry to undergo a protective torrefaction process, an all-natural green procedure in which wood is heated over time to eliminate its tendency to rot. A 20-year guarantee covers any warping, twisting, delamination, or rotting that might occur. This collection is offered in each of the 10,000-plus Lemieux residential entry door design options, and is available in maximum 4/0 widths and 8/0 heights and in select grade Douglas Fir, Brazilian Mahogany, Appalachian Poplar, and Aspen.