For the purposes of building construction, industry produces various types of clay hollow blocks. Clay blocks with horizontal and vertical hollows give a safer, faster, easier, and more rational construction of load-bearing and partition walls. Dimensions, quality and markings for certain types of clay hollow blocks are determined by regulations. The main purpose of this research paper was to describe the construction of load bearing walls made from clay hollow blocks. The types of hollow clay blocks, mortar types and the ways of making mortar for plastering walls are described as well. This research paper presents the order of performing the operations and the required tools and equipment for these operations.