Monitor floor stands

My husband through the union occasionally goes on what he calls the oddity jobs. Out of the union hall they called six carpenters to come in and completely set up these unusual showrooms inside of a local mall. When they all showed up and sign in they expected a little direction from the general contractor. But the general contractor was less knowledgeable of the blue prints than most of the carpenters were. So it was kind of chaotic for a while. My husband's job was to build and install for monitor floor stands on the first day into concrete. They were installed on an inside corner with mirrors on both sides to possibly reflect a bigger view of the area.