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 …

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 …

Compare Janka hardness ratings for 500+ wood species. Interactive chart showing hardness values in Newtons and pounds-force for flooring, furniture, and woodworking selection.

Download NWH's Hardwood Janka Ratings chart to assess the hardness of various wood species and help you select the ideal hardwood for your projects.

That’s where the Janka hardness scale comes in — a straightforward rating system that helps homeowners and builders evaluate wood’s resistance to wear and denting.

When in doubt about the type of wood to select for your cabinetry, flooring, furniture or millwork project, refer to the Janka Rating System, which measures the relative hardness of woods.

I have amassed over 500 wood species on a single poster, arranged into eight major geographic regions, with each wood sorted and ranked according to its Janka hardness.

Jan 6, 2026 · This complete guide explains how the Janka test works, why hardness matters, how to use the scale when selecting wood, and how scores differ across species. You will also find a detailed …

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.

Developed by Austrian researcher Gabriel Janka and standardized by the USDA Forest Products Laboratory, it is the most widely used benchmark for comparing wood hardness worldwide. More …