The load-bearing partition
must be supported by a beam or another load-bearing wall underneath.
Usually, they are composed of two lengths of lumber (2-by-4s or 2-by-6s) that connect in the middle and rest on a central load-bearing partition
The timber framing of these load-bearing partitions
is much heavier than on a normal modern lightweight partition and will tend to include diagonal bracing to give better support.
The existing blocks are made of concrete load-bearing partitions