Begin at starting wall and work out. ¦ Lay first row of planks with tongue side facing the wall. Angle the short end to lock planks together. If the starting wall is crooked, trace the contour of the wall. Use spacers along all sides that butt up against walls to maintain 1/4. – 1/2. (6.35 – 12.7 mm) expansion zone. ¦ Install remaining rows and stagger end joints at least 8. apart. (1) Install long end of first plank in second row at an angle. Keep plank angled slightly off subfloor. Use a scrap