Boards That Are Too Long May Cause Peaking

This one really depends on the manufacturer of the laminate flooring, and is probably the least likely. When a single board is too long, it can have the same effect as not having enough room to expand. This issue is avoided by never installing any single plank that is longer than is recommended by the manufacturer. If you did not install your floor, however, it can be difficult to find out who the manufacturer of your flooring is. As this generally only happens in situations where there are straight runs of 40 feet or more, you can probably rule this out unless you have a rather large house, or are dealing with a long hallway. However, if you can't find any place where your laminate floor is fixed, then it may be time to start looking for markings on the bottom of planks.