Ultra Series doors provide safe and code-compliant basement access, weather-tight performance, and easy operation, all with virtually no maintenance. The corrosion-resistant high-density polyethylene construction will never rust, rot, or need painting. Its simulated wood texture and pleasing driftwood color will complement the exterior of any home and the interchangeable side panel inserts allow homeowners to easily add light or ventilation to their basement areaway. Satisfies IRC (International Residential Code) 2012 Building code requirements for emergency egress in finished basement areas. Sheds water and keeps areaway dry and free of debris. Flanged construction and header design shed water and prevent binding due to ice and snow, permitting all season use. Interchangeable side panel inserts allow light or ventilation for basement areaway, enhancing visibility and/or reducing the likelihood of condensation. Motion dampers provide for safe and controlled door operation. Slide bolt locking mechanism, internal mounting flanges, and rugged concealed hinges help prevent forced entry. Now partially pre-assembled for faster installation. For door extension panels, use Model No. EXT6 ULTRA, (SKU 100203) and EXT12 ULTRA, (SKU 100199).