A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring. For hardwood flooring, the test usually requires an 80 mm × 150 mm (3 in × 6 in) sample with a thickness of at least 6–8 mm, and the most commonly used test is the ASTM D1037.

The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The Janka test measures the amount of force required to embed a 0.444" steel ball into the wood to half of its diameter.

2022年7月1日 · The Janka hardness test is a variation or adaptation of the Brinell hardness test. The Janka scale ranges from 0 to over 4000lbf, with softer woods scoring lower on the scale and harder wood scoring higher. Some woods, like balsa, are very soft and have a low Janka score, while other woods, like oak, are much harder and have a higher score.

2023年7月12日 · The Janka scale, simply put, records the density of wood by testing its resistance to denting. The test measures the force required to embed a .444-inch (11.28mm) diameter steel ball halfway into a piece of wood. That force is recorded in pounds-force (lbf) in the U.S. or in kilograms-force (kgf) or newtons (N) in other parts of the world.

2025年1月16日 · The Janka hardness scale measures a wood species’ resistance to wear and indentation. It quantifies the force needed to embed a 0.444-inch steel ball halfway into the wood’s surface. Developed as a standard, it provides a clear metric for comparing wood durability.

Complete listing of janka ratings for exotic and domestic hardwoods. The Janka hardness test is a measure of the hardness of wood. It’s an important metric in the lumber industry, used to determine the durability and strength of different types of wood. It was developed as a vriation of the Brinell hardness test.

This chart shows the wood hardness, also known as the Janka scale, of all popular wood species used in decking, siding and flooring applications.

The Janka hardness scale is a measurement that determines a wood sample’s resistance to denting or wear. It was developed in 1906 by Gabriel Janka, an Austrian-born American wood researcher. His method is now accepted as the standard for ranking a wood’s hardness.

The Janka Hardness is a measure of the resistance of wood to denting and wear. In simple terms, it tells you how hard a wood species is. This information can help you determine if a particular wood is suitable for specific applications, such as flooring or furniture.

The Janka scale is used to determine the relative hardness of particular domestic or exotic wood species. The Janka test measures the amount of force required to embed a 0.444" steel ball into the wood to half of its diameter. Woods with a higher rating …