ᐅ New Construction – What Slope/Pitch Must Be Accepted?

Good morning everyone,

Can someone tell me where I can find information about the acceptable slope for a floor (in our case, vinyl) in living and sleeping areas?
I am not asking about localized dips – our floor doesn’t have any depressions – but rather how “uneven” or out of level the floor can be in general.
The spirit level lies flat on the floor, but to get it perfectly level, I would have to lift one end of an 80cm (31.5 inches) level by 8-9mm (0.3-0.35 inches).
There must be a standard, probably a DIN norm, that sets the limits here, which may be exceeded.

Thanks in advance.

1 cm (0.4 inches) is standard practice

1cm (0.4 inches) over what length? Where can I find this information?

Exactly, at 80cm (31.5 inches)... if the room is 4m (13 feet) long, you can go sledding inside.

So: Just take a straightedge, and across the entire room, there can only be 1cm (0.4 inches) of deviation.

Lumpi_LE schrieb:

Exactly, at 80cm (31.5 inches)… so if the room is 4m (13 feet) long, you can sled down it.

So: Take a straight edge, and across the entire room, there should be a maximum deviation of 1cm (0.4 inches).

Sorry, before I misunderstand something, I’d rather ask again.
Do you mean that over 4m (13 feet) a deviation of 1cm (0.4 inches) is allowed? Or what exactly do you mean by “across the entire room”?

Also possible at 15m (50 feet), but your room won’t be that large, right? If you place a straight edge across the entire room level, the deviation should not exceed 1 cm (0.4 inches).