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The Janka hardness test (English: / ˈ dʒ æ ŋ k ə /; [1] German:), created by Austrian-born American researcher Gabriel Janka (1864–1932), measures the resistance of a sample of wood to denting and wear. [citation needed] It measures the force required to embed an 11.28-millimeter-diameter (7 ⁄ 16 in) steel ball halfway into a sample of ...
Durability: Cherry dents easily at a 950 on the Janka scale (which measures relative hardness of particular wood species), ... maple, or oak. Price Point: $7 to $25 per square foot.
Norway maple sits ambiguously between hard and soft maple with a Janka hardness of 1,010 lbf or 4,500 N. The wood is rated as non-durable to perishable in regard to decay resistance. [14] In Europe, it is used for furniture, flooring and musical instruments, especially for violins.
The hardness of traditional bamboo flooring ranges from 1180 (carbonized horizontal) to around 1380 (natural), while newer manufacturing techniques including strand woven bamboo flooring range from 3000 to over 5000 using the Janka hardness test.
The following table associates tree species, wood name and wood colour. The Dipterocarp timber classification system was developed by Colin Fraser Symington (1905-1943), a forester at the Malayan Forestry Service, and H. E. Desch, who researched comparative wood anatomy.
Maple (Acer) Hard maple Sugar maple (Acer saccharum) Black maple (Acer nigrum) Soft maple Boxelder (Acer negundo) Red maple (Acer rubrum) Silver maple (Acer saccharinum) European maple Sycamore maple (Acer pseudoplatanus) Marblewood (Marmaroxylon racemosum) Marri, red gum (Corymbia calophylla) Meranti (Shorea spp.) Merbau, ipil (Intsia bijuga ...
Mohs hardness of materials (data page) Vickers hardness test; Brinell scale This page was last edited on ...
The Janka hardness test; The Rockwell scale; The Durometer scale; ... Hardness scales may also refer to: Methods of measuring the deposit formation by hard water.