Room and board at CWRU is about $14,000… but it does cost your parents some money if you live at home, for food and utilities that you consume, as well as commuting costs. So, while living at home and commuting is likely to save some money, the savings is likely to be somewhat less than $14,000 per school year. Also, check to see whether CWRU’s financial aid changes based on whether you live on campus or commute from your parents’ house.
It may be worth considering living on campus for the first year if you attend CWRU, which is a predominantly residential school, but then move back to your parents’ house in later years, if that is financially feasable.