Humidity & Wood

Solid wood is a living material. That is why it is important to care for and treat it properly. Our furniture wood is dried to 8% wood moisture, which corresponds to a relative humidity of approx. 45% at room temperature.

Wood always adapts to its ambient climate. At low humidity the wood shrinks (shrinks); at high humidity it grows (expands).

An air humidity between 40 and 60% results in an optimal room climate. With extremely dry or damp room air the wood can take damage. It comes to crack formation or to strong deformation.
Too low humidity (occurs especially in winter in heated rooms) not only damages the wood, you also suffer from it. The mucous membranes are dried out, hoarseness and colds occur.

Accordingly, we recommend to keep the humidity of our tables above 40% during the heating period. For values below 40%, we unfortunately cannot guarantee the absence of cracks. This cannot be guaranteed realistically.


For yourself and for the sake of wood:

Check the indoor humidity with a hygrometer. If this falls below 40%, we recommend that you humidify the air artificially.


Declaration of the wood species used

The following tables list the types of wood that SWIFURN GmbH currently sells or has sold in the past.

The wood species are listed alphabetically. In addition to the regionally used trade name and the botanical name, they contain information on origin and place of reference. The countries of origin are those in which the named wood species grows and is harvested. The reference countries are the countries in which the respective species are purchased by the producer.


Wood database of the Federal Office for Consumer Affairs BFK

Wood atlas, Rudi Wagenführ, Carl Hanser Verlag, ISBN-10: 3-446-40649-2

Central East and South-East European wood species


Trade names German-speaking Switzerland Botanical Name Provenance Reference countries Producers
Maple Acer pseudoplatanus Europe, Asia Minor Switzerland, Germany
Maple (Norway maple) Acer platanoides Europe, Asia Minor Switzerland, Germany
Apple*** Malus sylvestris Central, Southern and Eastern Europe Switzerland, Germany
Birch Betula pendula (= B. verrucosa) Europe, North Asia, Japan Switzerland, Latvia
Pear Pyrus communis Southern, Central and Eastern Europe, Near East, Siberia Switzerland, Germany
Beech brown core** Fagus sylvatica Europe Switzerland
Beech steamed Fagus sylvatica Europe Switzerland, Germany
Beech nature Fagus sylvatica Europe Switzerland
Oak* Quercus robur Europe Switzerland, Germany
Wild Alsberry Sorbus torminalis Europe, Asian Turkey, Cyprus, Lebanon, Palestine, Caucasus, Northern Iran, North Africa, Asia Switzerland, Germany
Ash Fraxinus excelsior Europe, Middle East Switzerland, Balkans, France
Spruce Picea abies Europe Switzerland, Austria
Spruce (Nordic) Picea abies Northern Europe, Northern - Eastern Europe Switzerland
Scots pine Pinus sylvestris Europe, Northwest Asia Switzerland
Chestnut Castanea sativa Southern and Western Europe, Asia Minor, North Africa Switzerland, Germany
Cherry tree Prunus avium Europe, Asia Minor; naturalized: North America Switzerland, Germany
Larch European Larix decidua European Mountains Switzerland
Larch Siberian Larix sibirica Northeastern Europe, Western Siberia Switzerland
Basswood Tilia platyphyllos Europe Switzerland, Germany
Walnut European Juglans regia Southern and Central Europe; Cultivation: North Africa, Asia Minor, North India, China Switzerland, Germany, Balkans, Asia Minor
Robinia Robinia pseudoacacia Southeastern North America; naturalized and cultivated: Europe Switzerland, Germany
Elm Ulmus glabra Europe Switzerland, Germany
Plum Prunus domstica Europe Switzerland, Germany


* Räuchereiche und Eiche rustikal gedämpft fallen unter diese Kategorie
** Marmorbuche fällt unter diese Kategorie
*** Apfel gedämpft, Wildapfel fallen unter diese Kategorie