LUMAflat – Wooden front doors

Flush on the inside and out – the door panel and frame form a perfect unit.

The flush design on both sides makes LUMAflat front doors the perfect solution for truly modern architecture.

Created with clear lines and a timeless, purist design, LUMAflat provides a unique entrance to your own four walls and a sense of home. The winning formula of the LUMA models applies to LUMAflat as well, of course, ensuring a perfect blend of design, variety, harmony, warmth and comfort.

LUMAflat front doors are also
available in a break-in resistant design.
Resistance class 2 (RC2).

We love the environment around us &amp and take responsibility

Our timber comes from sustainable and mainly local forests. But we take environmental awareness to an entirely different level. Besides a solar power system for green electricity, we also have several electric vehicles and a charging station for e-bikes and electric cars.

We guarantee the highest safety standards

Ensuring that our windows and doors satisfy rigorous safety standards is our number one priority. To make certain that you always feel safe with windows and doors by KATZBECK.

We offer ideal
energy characteristics

High-tech windows let plenty of light and warmth into the home, and make sure the heating energy remains precisely where it is. The optimised properties of KATZBECK windows are reflected in their excellent photometric and radiant values.

LUMAflat – Front door models

Door hardware

It’s the matching hardware that brings your front door to life. Katzbeck offers you an extensive hardware programme and is delighted to assist you in your selection.


Exposed fittings

Lock systems