The 5520 door model is a router carved door with a single-panels and an arched top design for a classic colonial-style look. You’ll find a range of panel door options from a timeless single panel door option to the trendy flat panel shaker style door. The 5000 series doors are designs for interior use, not all doors are created equally, this is a high-quality door that has a longer life and a premium look compared to a hollow-core door. The router carved doors are manufactured in our world-class Nampa, Idaho facility. They are milled to perfection and a great product for noise reduction and privacy.