Joint Height Differential (Laminate Flooring)

Floor Detective® Claims and Conditions Guide

Summary

Joint height differential in laminate flooring is a condition where one plank sits visibly or physically higher than the adjacent plank at a joint interface. The condition may be detected visually, by touch, under reflective lighting, or during foot traffic across the floor surface. Height differential may occur at long-side joints, end joints, or both and describes the observable symptom rather than a single causative mechanism. Contributing conditions may include plank geometry variation, incomplete locking engagement, support irregularity, floating-system restraint, moisture-related edge change, underlayment interaction, or progressive locking-profile damage. Some height differences remain rigid and stable while others become depressible or progressive over time. Proper interpretation requires correlation of rigidity, repeatability, distribution geometry, environmental exposure, support behavior, and flooring-system interaction before conclusions are reached. See also Expansion Restriction / Pinning and Laminate Problems for broader context.

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