Scale 1:144 || 1:148 || 1:150 || 1:160 || N
Scale N or 1:160 is another popular scale. Also this scale has been derived from the track width of model trains, where N stands for nine ... 9mm space between the rails.
Trains with 1:148 and 1:150 are also using the 9mm track.
N scale is quite popular among hobbyists with less space available ... but still look for building up a functional train layout. There is also a vast number of models and structures from various companies available. A first choice for hobbyists, with limited space.