I have torn down the old garage door and the entire wall as I'm going to install a wider door. But I noticed now when I'm about to install the beam above the garage door that the floor slopes about 3 cm over a 2.54m wide opening where the door will go in.
Do I need to level the floor so it's completely flat where the door will go in, or are there, for example, strips that make the door seal anyway? Does anyone have full knowledge and can answer this, the company that's supposed to replace it is closed for the day and I need to get the wall completely finished this weekend :/
The door is a sectional door Hörmann GPE200 with motor if that makes any difference.