Other Name: White Esh
Ash is found in temperate areas of Europe. The trees grow to 30 m in height with diameters ranging from 40 - 100 cm.
The colour is white and turns to yellow when exposed to light. Heartwood is not demarcated from sapwood. In the heart of logs there are often brown areas, so called Brown Ash. The wood has a medium to coarse texture.
Ash is a ring-porous timber, so the annual rings are clearly visible, in contrast to rays.
The wood is hard and heavy with very good strength properties.
Machining is well, gluing is good, also nailing and screwing.
Ash has good properties for bending in processing of bent furniture.
European Ash is mainly used for furniture, veneers, flooring and stairs.
|Density (at 12 % moisture content)||702 kg⁄m3|
|Total longitudinal shrinkage||0.2 %|
|Total radial shrinkage||5.0 %|
|Total tangential shrinkage||8.0 %|
|Equilibrium moisture content|
|(20° C⁄ 37 % rel. humidity)||7.3 %|
|(20° C⁄ 83 % rel. humidity)||16.5 %|
|Modulus of elasticity under bending||13400 N⁄mm2|
|Modulus of rupture under bending||120 N⁄mm2|
|Tension strength||165 N⁄mm2|
|Compression strength||52 N⁄mm2|
|Brinell hardness perpendicular to the fibres||38 N⁄mm2|
|Janka Hardness||4.4 kN|
|Nail withdrawal strength in N per mm depth and mm diameter||16 N⁄mm2|
|Natural durability and treatability (according to en 350-2)|
|Fungi||Class 5 not durable|
|Dry wood borers||susceptible|
|Termites||Class S susceptible|
|Treatability||2 – moderately permeable|
Natural durability is based on mature heartwood. Sapwood must always be considered as non durable against wood destroying agents.