An advantage of N scale is that it allows hobbyists to build layouts that take up less space than HO scale, or put longer track runs into the same amount of space, because the models are smaller (by nearly a half) than they are in HO scale (1∶87). While N scale is quite small, it is not the smallest commercially available scale, as Z scale is smaller yet at 1∶220 and T scale is 1∶450 or 1∶480. N scale is considered generally compatible with 1∶144 scale for miniature wargaming.