Window Well Supply

Bilco Ultra Series Basement Door

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Bilco Ultra Series Basement Door

Bilco Ultra Series Basement Door


Lifetime Warranty

Unbreakable Strength

Long-Lasting Durability

Ultimate Safety

Free Shipping


The Bilco Ultra Series Polyethylene Basement Door (also known as a cellar door) is a high-density door available in the Bilco Size C only. This Ultra Series door will provide a weathertight performance and easy operation. The basement doors are easy to operate due to the gas spring lift assistance that provides a smooth, easy, one-handed operation and prevents the door from slamming. Gas springs are found on the inside of the door and should be installed with the black end up (larger diameter) and the silver end (smaller diameter) on the bottom. The Ultra Series door will never rot, rust, or need painting and are nearly maintenance free.

  • Standard size only, no custom sizes available
  • Comes pre assembled for easy installation
  • Made of a simulated wood texture
  • Must be verified that there is clearance available if there is a wall on either side of the door
  • Has an interior slide bolt locking mechanism
  • Great for new and remodeling construction projects
  • 5 Year Manufacturer Warranty