Below are our standard size shower bases. All base sizes are from stud to stud. In order to stay within our standard sizes the drain must be in the marked location and have the same curb location. All curbs are 3 1/2" to 4 1/2" tall. All shower bases are made out of cultured marble and they are poured solid. Don't fall into one of these sizes?? Don't worry check out our custom shower base page.