I have an old metal basement door that is rusting away, and it's probably high time to replace it. The thing is that the floor in the room inside the door is now about 10 centimeters higher than when the door was installed, resulting in a somewhat unsightly appearance. An additional inner door has managed it, but now that I'm converting the basement into a bedroom, I thought I would like to bring in a bit more light and thus want a door with a window. It would be better with a door. Additionally, the current door is more or less against the ground, which is a bit problematic when it rains and water runs down to the door (see image).
So what I want to do and need some support with how to think is how to go about raising the door frame. I think I need to do the following:
1. Remove the lecablocks that are above (see image)
2. Cast a new base to raise the lower frame of the door away from the ground on the outside and up to floor level. (see image)
3. Install a new door frame with a door.
Do you think there is a need to reinforce the structural integrity above the new door frame? Above the lecablocks, there are wooden studs quite close.
Is it difficult to cast a new base/platform? Does anyone have any tips/links?