Build your own garage - material and price list ok?

... of course you can use any, but there are "approved fasteners" specifically for sandwich panels. One of my friends is a specialist exactly in this area (industrial halls made from the aforementioned panels) and works on the DIN :) . Therefore I know: such fasteners are expensive and possibly not so easy for end consumers to get. So count on a few extra euros :rolleyes:
Also consider: tighten with the correct torque (get the appropriate tool) otherwise -> element will be damaged quickly

Could be right, but I think it will be 15,000.

The previous instructions actually all have the same structure with the corresponding stainless steel screws and caps. At first glance, there are no major additional costs now. Thanks for the tip about the tool

From experience or because of certain positions in my calculation?

I would take 17 Poroton, you have more space inside. Okay, it’s only 14cm but still :)

Forgot to plaster inside? 500 euros for outside is very cheap, that’s about 60m2 depending on how uneven you lay the bricks plastering costs.

Plaster corner beads

Floor coating is missing. Whether tiles or 2k, at least 1000 euros.

Door missing

Window missing, necessary because of moisture

Lintel missing for both

Garage door is 5000x2150?

Pent roof then EPDM foil at that size about 1500-2000 euros. If with tar paper then about 800

Stainless steel edge strip at the screed so that the transition from the pavement does not break off. About 200 euros.

What you can look into is a prefab ceiling if that comes cheaper.

Or cast-in-place concrete ceiling, but then you should have a plan on how to pour the parapet and lintel in one go.