Cupping
Cupping: definition: A concave or dished appearance of individual boards with the edges of the board raised higher than the center. This is also a type of warp. Common causes include elevated moisture on the underside of the floor.
Checks
In solid hardwood, checks commonly occur from a separation of the wood fibers across the annual rings of growth from manufacturing-related drying stresses.... In Engineered hardwood, lathe checks in rotary peeled and sliced can occur from stresses...
Delamination
Delamination occurs when two or more of the panel layers separate along the bond line (failures should demonstrate a relatively clean release, with minimal trauma to the surfaces or interior structures of the involved layers). Separations can occur between the layers of the platform, between the...
Slivers/Splinters
Splinters are most commonly found along board edges and ends but can occur on the face of boards as well. A splinter develops when wood fibers fracture along the grain leaving an exposed and often sharp piece of wood. They can be manufacturing, installation, use, maintenance or environmental rel...