Category: Glossary of Terms -J

Strip flooring, generally birch, beech, hard maple or pecan, manufactured with square edges, not side-matched, but usually end-matched. It is used principally for factory floors where the square edges make replacement of strips easier.

A reference scale used to rate the hardness of a wood species. The hardness indicates the ability to resist wear, denting, and surface scratches. (Red oak has a Janka Scale rating of 1260 lbs/sq.)

A hardness test, usually for wood flooring, the rating is pounds of pressure required to press a steel ball .444 inches in diameter one half way into the wood. It is one of the best measures of the ability of a wood species to withstand denting and wear. It is also a good indicator of…

One of a series of parallel beams used to support flooring or ceiling weight loads.

Refers to the strength of the hardwood material based on a scale which determines the amount of force it takes to drive a .444 inch steel ball into a plank of wood .222 inches in diameter.