What is a double cylinder?

Instead of just one knob on the inside of the door, you have both a knob and a cylinder. With this solution, it is possible to prevent a burglar who has entered the house, e.g. through a window, to open the door as an escape route alternatively uses the door as an exit to carry out valuables such as furniture.

Made in Bovallstrand - Sweden

Bovalls Dörrbyggeri builds wooden front doors, wooden internal doors and wooden windows in certified materials with a passion for wood. Wood as a unique natural and living material and hope for a sustainable production for both people and the environment. Simply, Wood, hope and love!