Discussions Planning and DesignConcept and design Can you raise a garage floor? Save Like Comment(2) Print Share Facebook Twitter Email A Can you raise a garage floor? Anwar Chowdhury Jan. 3, 2021Last updated: Jan. 6, 2021 Our garage floor is almost back alley level, it has retention wall, and inside about 6 inches height from the slab. We like to raise it at least 4 inches! Is it possible? If so, how? Thank you in advance.