Workers Install Wooden Door Frames in the Education Center

Workers have started to install the wooden frames for the doors of the education center. The frames are each sold with a specific door that matches each frame's height and width, so that later the doors can be easily installed. The door frames must be installed prior to the pouring of the floor to ensure that the frames are firmly in place. In addition, nails are driven into the frames so that the protruding ends can be encased in concrete as they are set into the walls. In the first photo, you can see where workers have chiseled out spaces in the wall to make room for the nails. The space between the wood and the wall is then filled with concrete to firmly cast the door frame in its final resting place (a process that can be seen in the second photo).