The Janka Hardness Test is a measure of the hardness of wood. The Janka Test was developed as a variation of the Brinell hardness test. The test measures the force required to push a steel ball with a diameter of 11.28 millimeters (0.444 inches) into the wood to a depth of half the ball’s diameter. The diameter was chosen to produce a circle with an area of 100 square millimeters. The Janka hardness values have been indicated below for your reference.

Acacia  2250
Acacia Red  1920
Acacia White Bark  2400
Afara Black  845
Afromosia 1560
Afzelia Doussie  1810
Albarco  1020
Alder Red  590
Almácigo  370
Amboyna  2170
Amburana  3040
Amendoim  1910
Almendro  1855
Andiroba  1220
Angelim Pedra  3040
Angelin  1750
Angelique  1290
Apixuna  1490
Apple 1730
Arariba 2000
Ash Black 850
Ash Blue 2030
Ash Brazilian 1800
Ash Green 1200
Ash Oregon 1160
Ash Pumpkin 990
Ash White 1320
Aspen Bigtooth 420
Aspen Quaking 350
Avodire 1080
Awoura 1480
Azobe 3350

Balau Red 1640
Balsa 100
Bamboo Carbonized 1180
Bamboo Natural 1375
Banak 510
Bangkirai 1798
Basswood American 410
Beech American 1300
Beech European 1300
Beli 1480
Benge 1750
Billian 2680
Billy Webb 2670
Birch Gray 760
Birch Paper 910
Birch Sweet 1470
Birch Yellow 1260
Black African Ironwood 3120
Blackwood African 1720
Blackwood Australian 1100
Bloodwood 2900
Blue Mahoe 1330
Bocote 2200
Bois De Rose 2500
Box Elder 720
Brazilwood 2820
Brushbox 2145
Bubinga 2690
Buckeye Yellow 350
Buckthorn Cascara 1040
Buckthorn Glossy European 1120
Butternut 490

Cambara 941
Cameron 1940
Camphor 726
Canarywood 2000
Capote 795
Cardinal Wood 2900
Catalpa Northern 550
Catalpa Southern 550
Cativo 630
Cedar Alaska 580
Cedar Incense 470
Cedar Lebanon 1060 
Cedar Port Orford 720
Cedar Red Eastern 900
Cedar Red Southern 610
Cedar Red Western 350
Cedar Spanish 600
Cedar White Atlantic 350
Cedar White Northern 320
Cerezo 3190
Chechem 2300
Cherry African 1100
Cherry Andean 2820
Cherry Black 950
Cherry Bolivian 3190
Cherry Brazilian 2820
Cherry Caribbean 3100
Cherry Chilean 990
Cherry Patagonian 2820
Cherry Salinas 3190
Chestnut 540
Chestnut American 540
Chestnut Patagonian 1610
Chestnut Southern 2670
Chicha 400
Chinkapin Giant 730
Coffeetree Kentucky 1390
Cohoba 2730
Coigue 990
Copaibo 1470
Cottonwood 300
Cottonwood Black 350
Cottonwood Eastern 430
Courbaril 2350
Crabwood 1220
Cuangare 380
Cuchi 3150
Curupay 3840
Curupixa 1490
Cypress Bald 570
Cypress Australian 1375
Cypress Mexican 460

Degame 1940
Determa 660
Dogwood Flowering 2150
Ebony Black & White 1470 
Ebony Brazilian 3692
Ebony Ceylon 3220
Ebony Gaboon 3220
Ebony Macassar 3250
Ebony Mexican 3510
Ekop 1480
Elder Blue 840
Elm American 830
Elm Cedar 1320
Elm Rock 1320
Elm Slippery 860
Elm Winged 1540
Espave 470

Faveira 2895
Fir Balsam 400
Fir California Red 500
Fir Douglas Coast 710
Fir Douglas Interior West 660
Fir Douglas Interior North 600
Fir Douglas Interior South 510
Fir Grand 490
Fir Noble 410
Fir Pacific Silver 430
Fir Subalpine 350
Fir White 480
Freijo 1627
Fustic 2380

Garapa 1800
Gingerwood 1600
Gommier 900
Goncalo Alves 2160
Granadillo 2750
Grapia 1800
Greenheart 2350
Guachapele 1040
Guanacaste 520
Guayabon 1800
Gum Red River 1410
Gum Ribbon 1349
Gum Spotted 2473
Gum Sydney Blue 2025
Gumbo Limbo 370

Hackberry 880
Hemlock Eastern 500
Hemlock Mountain 680
Hemlock Western {540
Hickory 1820
Holly American 1020
Hophornbeam Eastern 1860
Hornbeam American 1780
Hububalli 2750
Hura 550

Ilomba 610
Imbuya 950
IPE 3680
Iroko 1260
Itauba 2900
Ivorywood 1500

Jarrah 1910
Jatoba 2820
Jelutong 390
Jobo 420
Juniper Alligator 1160
Jutahy 4000

Kambala 1260
Kaneelhart 2900
Kapok 281
Kapur 1230
Karri 2040
Katalox 3510
Kauri Ancient 660
Kempas 1710
Keruing 1270
Khaya 830
Knob Thorn 1820
Kurupayra 3840
Kwila {Intsia palembanica} 1712
Lacewood Australian 840
Lacewood South American 840
Lapacho 2800
Larch Western 830
Laurel California 1270
Laurel Mountain 1790
Leadwood 3660
Leche Maria 1120
Lemonwood 1940
Leopard Tree 2740
Lignum Vitae 4500
Limba 490
Locust Black 1700
Locust Honey 1580
Lyptus 1796

Macawood 2750
Machiche 3100
Madrone Pacific 1460
Magnolia 700
Magnolia Southern