Mattress Firm Catonsville is located in Catonsville MD, Zip Code: 21228 on the street of 6427 Baltimore National Pike, Ste B. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 410-869-4671. The coordinates that you can use in navigation applications to find Mattress Firm Catonsville quickly are 39.28349 -76.75984 USA