Price of Bims prefabricated garage including excavation?

Hello everyone,
besides our bungalow under construction, we want to place a prefabricated garage at some distance. I have a provider in mind who I think is very good. It is a pumice prefabricated garage with the dimensions 6x8 m. I am only concerned about the price now. It is, including everything (excavation without removal, backfilling, compaction, base slab WU concrete 20cm and garage, plastered and painted without gates and door), about 315 € / m² converted. Is that an acceptable price? I certainly can't build the walls myself, as I have always been told.

Oh yes, in RLP, region KO.

Thanks and regards
Stephan

Oh, the price is without VAT.

Hello, the price is okay for such a garage. I just don't know if you have chosen the right type. Don't just read the advantages of this type but also the disadvantages. You will be cheaper with a normal prefab garage.

That is correct. The difference is about 1500 euros. The disadvantage of the precast concrete garage is that it consists of two joined garages in this format (6x8), which have a 4m long opening in the middle. The rest is a partition wall. I don’t have much of that because I want to tinker with my cars in the garage.

The advantages of the pumice garage clearly outweigh this because here I have about 50 cm of a ridge at the beginning and at the end. Thus, about 7m of free space remains.

Not quite right what you write, my article is somewhat distorted at the top because the link I set was deleted. Even with precast garages, the ridge can be omitted—you just need the right provider (which I am not allowed to name here but there are several). Precast garages, including yours, generally do not reach the quality of masonry garages in most aspects. Yours has a very big disadvantage: the economic durability. Cold halls made of pumice stone (like your garage) have weak spots at the joints. Water collects in these weak spots... in winter this freezes... (without links I would have to write too much). A summary. Bell casting is not ideal (normal concrete garages). They economically last 25 years, still a great alternative because after 25 years you could build two more for the price of one masonry garage. Lightweight construction lasts 50 years (special steel constructions with double-shell walls), is very inexpensive, and cannot be distinguished from masonry. Pumice stone will show maintenance costs after a few years which you cannot really estimate. But over the course of 25 years, the total costs will exceed those alternatives.