To close a gap in your laminate flooring, all you’ll need is some wood glue. Apply a thick coat of glue to the tongue of the board that’s come loose. You can then push the 2 boards back together by striking 1 of them at an angle with your fist.Click to see full answer. Just so, what causes gaps in laminate flooring?Gapping is a situation in which the laminate flooring boards tend to pull away from one another resulting in gaps between the boards. This situation will occur if the temperature drops to a point way below what is considered normal (60°-80°).Similarly, why does my laminate floor crackle when I walk on it? If a floor has too many humps or depressions, a filling compound needs to be used to get the floor flat. Laminate flooring will snap and pop as you walk on it if it’s bridging across hollow spots under the flooring. Your weight stresses the interlocking tongues and grooves in the flooring, causing the noise. Keeping this in consideration, how do you fix floor gaps? Filling Floorboard Gaps With Wood Putty Clean the floorboards on both sides of the gap. Apply a fine bead of wood putty to the gap, then work it into the gap with your finger, using circular motions to force the putty down into the gap. Remove excess putty from the wood surface using a putty knife. Why won’t my laminate floor click together?Possible reasons why laminate pieces won’t snap into each other may be that you have a warped piece of laminate or the subfloor is uneven or has something sticking up that is preventing the board from laying as flat as the first piece. Hold the plank up at eye level to see if it is warped.