Grid Calibration

I transitioned from the lower bookshelf to the floor perimeter. A woven carpet edge displayed a seven-degree deviation from the floorboard grain. I placed my left foot against the fabric seam. Applying calibrated downward pressure, I worked sequentially across twenty centimeters until the fringe line ran perfectly parallel to the dark wood plank. A small plastic building brick sat adjacent to the boundary. I aligned its rectangular edge to the floor seam with two millimeters of clearance. Sector continuity is confirmed.