Classification Information
(Based on Intent to Use) (Based on 44(e)) Exterior door systems for residential, commercial and building purposes sold as a unit comprised of metal storm doors, metal screen doors, and metal entry doors
Metal Goods(Based on Intent to Use) Exterior door systems for residential, commercial and building purposes sold as a unit comprised of non-metal storm doors, non-metal screen doors, and non-metal entry doors
Nonmetallic Building Materials