or chamfered profile on the outer surface of the front section 702 and rear section 704 the corner unit 700 may also have a chamfered side edge for coupling to adjacent units in addition the stretcher unit may have a knock out portion for producing a bonding beam these features are similar to those previously described herein with respect to the exemplary embodiment disclosing the exemplary stretcher unit 400 with angled webs the stretcher units may assemble into a linear wall structure 800 as shown in fig8 a and 8b the linear cells 802 of the stretcher and or corner units produce a vertical post the vertical posts typically may be reinforced with a reinforcement member for example steel rebar the linear cells 802 of the stacked stretcher units provide a more consistent size and are aligned linearly when concrete is poured into the cells the more consistent size of the linear cell makes it less difficult to install reinforcement members in the cores to form the vertical posts in addition the more uniform cell dimensions may make it less difficult to fill the voids within the cell many conventional dry stack block systems may provide little or no damming capacity when filling the cells of a dry stack block wall structure fig9 is a perspective view of the stretcher unit stacked according to an exemplary stacking embodiment 900 the dimensions and structure of the stretcher unit provide the ability to stack a single column of units by alternating each successive unit by 180 degrees the next stretcher unit may be.