STEP 10. After laying the first four rows of panels along the long wall, begin again at the starting point and lay four rows of panels perpendicular to the first rows. Follow the same previous steps (8 through 9) for laying panels and be sure to follow the control lines.  If you do not stay on the control lines, the floor will not be square and your grid lines will not be straight.  After laying in the ELL section, check and re-check to be sure it is square.  When you are certain the ELL is square, continue to install rows until the ELL becomes a rectangle or square. While you are laying panels in this area, you should have someone spreading, shooting, leveling and preparing the next adjacent area for panels..

Step 11. Align Grid