- Thanks guys! The scale is 1/24 or 1/2" which is dollhouse half scale. It will work for 1:20.3 if you are not that fussy. Many 1:20ers use 1/24 or 1/18 car models anyway. This one was a fun one to do. There may be a tiny church next. The web page will have info on the dollhouse items soon. There is also a 1/24 scale upright piano kit available!