that's somewhat of a trick question because the spectrum of soap size and shapes is vast [to a degree]. i will explain : you have the "bread" loaf type mold , and soaps with that whip cream style tops , you have cup cake soaps , you have the rectangle type mold, you have the individual soap mold , and still some sell a "country" style bar of soap that seems family type style which is like three times the size of the rectangle style soap, and they all sell. for me seeing that i use a washcloth i do not mind the style of soap so much {though i do not like the individual bar style soap mold too much} .... my soaps are 1 inch thick , i may cheat to 1 1/4... and have used a whole bar of Aleppo and found it thrilling
. "different soap for different folks"