Impossible to ID from this image, but if it was brown, very fast and running across the floor it is likely to be a kind of ‘house spider’ in the genus Eratigena (they’re found outdoors too).
Impossible to ID from this image, but if it was brown, very fast and running across the floor it is likely to be a kind of ‘house spider’ in the genus Eratigena (they’re found outdoors too).