Laminate flooring expands and contracts with temperature and humidity. Since it is a floating floor, it does not require glue, nails, or other forms of attachment. That is why your laminate floor might move. To prevent this from happening, you can slide a spacer between the wall and the long edge of the plank. With this, the laminate can expand and contract with the environment. Also, the floor will not move. Laminate floors move when the planks contract, creating gaps between the planks. To fix the gap, you can caulk the laminate floor. The laminate floor will no longer move after caulking.