And another Achilles heel of laminate.

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Another "trouble" of laminate is when, during use, also due to gradual wear of locks and an unstable base, a small "step" appears at the joints of the boards. That is, the edge of one board becomes slightly higher than the edge of the neighboring one. Firstly, this spoils the appearance of the flooring. And secondly, such a raised edge will sooner or later be lifted up by shoes.
On laminate without a chamfer, such a step spoils the appearance and can become a “starting point” for the destruction of the integrity of the coating.

If the laminated boards have a chamfer, then a slight china mobile database of the edge is practically unnoticeable, and the probability of tripping over such a “step” with a beveled edge is very small.

Even with a slight deflection of the boards (which, by the way, should not happen with proper installation), the maximum compressive stress is experienced precisely by the upper edges of the end sides along the seam line. As a result, the decorative and protective layers peel off along the locking joints. And this is an untidy look of the floor, an open "road" for water penetration through the damaged coating, and, as a consequence, rapid wear of the laminate.
In areas of increased stress during deflection, signs of swelling and delamination first appear, and then everything ends with frayed seams - the laminated floor completely loses its neat appearance.

It cannot be said that the presence of chamfers completely eliminates this problem. But still, on the upper, most stressed section, there is no contact between the boards due to the counter chamfers, and the probability of getting the problem described above is significantly lower.

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Thus, the chamfer, in addition to its purely decorative role, makes a certain contribution to increasing the service life of the coating.