These walls require greater base depth to create a better foundation. The steel bars are placed in the form of an 'L' shape. Step #2: For attaching the walls, use 2” by 4” boards with a canter stud for support. In case of the split level homes, the entrance is located between two floors. First measure the area of installation and then purchase the required number of blocks. Take advantage of this opportunity to completely remodel your house and make it a more spacious and comfortable dwelling, for days to come. Also, note the exact position of the openings for doors and windows. ⇒ Mark the