Edges of planks are higher than the centers

Dry cupping

Dry cupping

Dry cupping

Checked humidity and temperature

Humidifier

Dry cupping

Dry cupping- shear or delamination

Dry cupping

Dry cupping

Dry cupping causing separation of veneer

Dry cupping

Low Rh

Dry cupping

Cupping measurement

Board edges are higher than the centers

Board edges are higher than the centers

Dry Cupping (Engineered Hardwood)

Floor Detective® Claims and Conditions Guide

Summary

Dry cupping in engineered hardwood flooring is a concave surface profile condition in which plank edges appear higher than the center due to moisture imbalance through the thickness of the board. The condition develops when the exposed wear layer loses moisture more rapidly than the underlying core, creating a differential shrinkage response between bonded layers. This moisture gradient generates internal stress that alters the plank profile without necessarily compromising structural integrity. Dry cupping is most frequently associated with

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