House of Doors - Roanoke, VA

House of Doors - Roanoke, VA   proudly stocks Five Lakes Manufacturing brand wood doors for timely delivery to your most demanding projects. MC5-90 Fire Resistant Wood Door 5-Ply  The door core is made using what is commonly referred  to as mineral core.  The core is non-asbestos and is a mix of materials including drywall and fiberglass.  These doors use specific stile and rail components. As the rating grows (45, 60, and 90) slightly larger stile and rail components are used to help achieve these designations.  There are restrictions regarding lite kit sizes and  the higher the minute rating the smaller amount of visible glass.