GB - Steirer Parkett

hardness values &
equilibrium moisture content
The surface of your
wooden floor – the socalled
wear layer – is made
exclusively from selected
wood.
Wood species differ
in hardness, which is
measured in Brinell. The
higher the Brinell value the
harder the wood and the
more wear the floor can
take.
At a relative
humidity in %:
Hard
wood
very hard
wood
extremely
hard wood
Wood equilibrium moisture content:
technical data | 71
Wood species origin Ø raw density
u=12%
[g/cm³]
Ø Brinell
hardness
[n/mm²]
Birch Europe 0.65 23
Black cherry north america 0.58 24
Black Walnut north america 0.64 26
Maple Eur. Europe 0.63 27
apple Europe 0.75 28
cherry Eur. steamed Europe 0.63 31
Pear Europe 0.74 32
Red Oak north america 0.66 33
acacia (Robinia) Europe 0.77 34
Beech Europe 0.72 34
Oak Europe 0.68 34
Hard Maple canada 0.67 35
Iroko (Kambala) central africa 0.69 35
Plum Europe 0.80 37
Doussie (afzelia) West africa 0.75 38
ash Europe 0.69 39
Bamboo china 0.70 40
Merbau South-East asia 0.86 46
Wenge East africa 0.86 53
Jatoba South/Latin america 0.95 68
80 % 16.2 16.0 16.0 15.8 15.5 15.1 14.9
75 % 14.7 14.5 14.3 14.0 13.9 13.5 13.2
70 % 13.2 13.1 13.0 12.8 12.4 12.1 11.8
65 % 12.0 12.0 11.8 11.5 11.2 11.0 10.7
60 % 11.0 10.9 10.8 10.5 10.3 10.0 9.7
55 % 10.1 10.0 9.9 9.7 9.4 9.1 8.8
50 % 9.4 9.2 9.0 8.9 8.6 8.4 8.0
45 % 8.6 8.4 8.3 8.1 7.9 7.5 7.1
40 % 7.8 7.7 7.5 7.3 7.0 6.6 6.3
35 % 7.0 6.9 6.7 6.4 6.2 5.8 5.5
30 % 6.2 6.1 5.9 5.6 5.3 5.0 4.7
25 % 5.4 5.3 5.0 4.8 4.5 4.2 3.8
at a temperature in
°c celsius of:
10° 15° 20° 25° 30° 35° 40°