Janka Hardness Test

The Janka Hardness is a measure that calculates the pounds of force it takes to drive a .44” diameter steel ball 1/2 its depth into wood. The higher the number recorded, the harder the wood is deemed to be. Bamboo Industries Strand Woven Bamboo has tested as second hardest of all woods.

Walnut Brazilian	Tabebuia, spp	3680
Strand Woven Bamboo	Bamboo	3625
Teak Brizilian	Dipteryx, odorata	3540
Cherry, Bolivian	Manilkara, bidentata	3190
Cherry, Caribbean	Lonchocarpus, castilloi	3100
Tamarind	Dialium, guianense	3000
Bloodwood	Brosimum, rubescens	2900
Cherry Brazilian	Hymenaea, courbaril	2820
Rosewood Patagonia	Piptadenia Macrocarpan	2800
Rosewood Tiete	Guibourtia, chodatianal	2800
Walnut, Patagonian	Tabebuia, heptaphylla	2800
Chestnut, Southern	Sweetia, Panamensis	2670
Rosewood Caribbean	Metopium browneii	2300
Brushbox, Northern	Tristania, spp	<2245
Mahogany, Santos	Myroxylon, balsamum	2200
Rosewood Honduran	Dalbergia, Stevensonii	2200
Tigerwood	Astronium, spp	2160
Purpleheart	Peltogyne, spp	2090
Gum, Sydney Blue	Eucalptus, saligna	2025
Bubinga	Guibourtia,demeusei	1980
Merbau	Intsia,spp	1925
ewood, Bolivian	Machaerium, sclieroxylon	1780
Doussie	Afzelia spp	1770
Padauk,African	Pterocarpus, soyauxii	1725
Jarrah	Eucalyptus, malaccensis	1710
Shedua/Mutenye	Guibourtia,arnoldiana	1650
Wenge	Milletia, laurentii	1630
Zebrawood	Microberlina, brazzavillensis	1575
Timborana	Piptadenia, suaveolens	1570
Afrormosia	Pericopsis, elata	1560
Maple,Patagonian	Balfourodendron, riedelianum	1500
Vertical Bamboo	Bamboo	1480
Ash, Silky	Couratari, spp	1460
Mahogany,Royal	Pitchecellobium, arboreum	1400
Walnut, Caribbean	Lysiloma, bahamensis	1400
Cypress,Australian	Callitrus, glauca	1375
Amendoim	Pterogune, nitens	1340
Horizontal,Bamboo	Bamboo	1320
Beech, European	Fagus, slyvatica	1300
Angelique	Dicorynia, guianensis	1290
Ash, Victorian	Eucalyptus, delegtensis	1290
Iroko/Kambala	Chloraohora, excelsa	1260
Teak True	Tectona, grandis	1155
Walnut Peruvian	Juglans neotropica	1080
Cherry,Chilean	Nothofagus, dombeyi	990
Pine, Heart	Pinus, caribaea	910
Lacewood	Roupala, brasiliensis	840
Mahogany,Honduran	Swietenia macrophylla	800
Chestnut	Castanea, sativa	540