The Janka Hardness Test

janka test

The Janka 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.

Janka Hardness is measured in the following units: In USA the Force unit is pounds-force (pounds-force is shown below), Sweden:kilograms-force, Australia:newtons.

EXOTIC & DOMESTIC LUMBER JANKA VALUES

0 lbs JANKA HARDNESS SCALE4000 lbs

Leadwood

3570

Angelim Pedra

3160

Live Oak

2680

Flamewood

2650

Marblewood

2530

Australian Beefwood

2420

Banyan

2340

Tatajuba

2200

Itauba

1900

Pecan

1820

Melaleuca

1530

Bishopwood

1370

Long Leaf Pine

1225

Nicaraguan Rosewood

1650

Laurel Oak

1650

Mango

1070

Chinaberry

990

Camphorwood

950

Monkeypod

900

Australian Lacewood

880

Cambara Mahogany

860

Florida Mahogany

800

Sycamore

770

Podocarpus

760

Norfolk Island Pine

650

Atlantic White Cedar

350

Sign Up for the Newsletter

Current Contest & Upcoming Events

Photo Contests

Enter for your chance to win!

Enter Now