From 2nd April 2022 the 3G rule does not longer apply to the building material display center. The mask requirement remains in place! Thank you for your understanding.
The building materials display centre baustein in Karlsruhe opens from Monday to Friday from 08.00 am to 17.00 pm.
You also have the opportunity to visit the building materials display centre every 2nd and 4th Saturday of the month from 10.00 am to 2.00 pm.