ᐅ Recommendations for Garage Finished Floor Construction 10-15mm?

Hello,

Our masonry garage currently has a slab as a raw floor. Due to the door dimensions, the finished floor height can be a maximum of 1.0–1.5cm (0.4–0.6 inches). I am looking for recommendations for a floor build-up of both 1.0cm and 1.5cm.

As far as I know, the slab needs to be ground first. Then there are different floor systems like bonded screed or self-leveling compounds, etc.

What would be an affordable and simple solution here?

At 1.5cm (0.6 inches): 2mm (0.08 inches) leveling compound followed by tiles (tile spacers or porcelain stoneware),

or 8mm (0.3 inches) leveling compound followed by either concrete paint or a 2-component epoxy resin coating.

I now have two quotes. One includes the full package with leveling compound, two coats of paint, cove molding, etc. Cost: 13,000 gross (specialized restoration company)!
The other quote includes leveling compound Remmer Multiplan SIC and border strip: 5,000 gross. However, the paint coating and other details are missing here (craftsman).

Is the border strip sufficient, for example, for a plasterer working later? Or should a cove molding be installed and extended up onto the unplastered wall?

To be honest, I don’t want to spend more than 4,000 to 5,000 on the floor for 50m² (540ft²) — is that realistic?

Is the edge strip wide enough, for example, to accommodate plastering later on? How should this be interpreted? First the floor, then the wall?

Tommi27 schrieb:

Is the edge strip wide enough, for example for a plasterer later on? How should this be interpreted? Floor first, then wall?

Yes, it currently seems that way...

In my opinion, that doesn’t make sense; the floor will look bad later on. A cove fillet doesn’t make much sense either. I would suggest sanding, leveling, cleaning the walls, and then painting or maybe applying epoxy later, depending on the budget. The floor (slab) can basically stay as it is for now, right?