Steel is one of the most traditional garage door materials. To manufacture, first, large rolls of steel travel through machines that emboss a wood grain onto the door. The small bends created by the initial pass add strength and durability to the structure of the door. Next, a raised panel or carriage house design is stamped onto the steel. However, the manufacturing process of stamping limits the design choices of those looking for a standout door. Steel doors can be painted a variety of colors or painted with a wood stain-like finish.