Fill the gap between floors?

[Luha]

Hi,
I have an opening between the kitchen and living room where two floors with different levels meet. The idea is to place a threshold (flat) there and build it up from underneath.

The problem is that the area there needs to be filled and leveled a bit. Is there any convenient compound to fill and level it with? I assume spackling is out of the question?

Tips are gratefully received.

 

[Tompafix]

Hello,
I have an opening between the kitchen and living room where two floors with a height difference meet. The idea is to place a (flat) threshold there and build it up from underneath.

The problem is that the area there would need to be filled up and leveled a bit. Is there any convenient material to fill and smooth out with? I assume spackel is out of the question?

Tips are gratefully received

Husfix, or floor spackel works well

 

[gone_fishing]

Goes well with almost anything, such as some fine concrete or floor leveling compound, as long as there aren't a lot of holes for it to run down into.

 

[Luha]

Husfix, or floor leveling compound works well

Husfix seems good. Is it easy to mix by hand or do I need to get a machine mixer? It's not huge volumes that need mixing.

 

[Tompafix]

It works to mix by hand. But a whisk makes it a little easier.