out for s
karuun® is a
product brand of
out for space
A Material
Rat­tan’s structure is compara­ble to a bundle of tubes. The rat­tan palm can transport wa­ter up to 160 me­t­res th­rough its long
capillaries. out for space utili­ses this natu­ral pro­perty for its one of a kind, patented tech­nology. When the capillaries are injected wi­th various bulking agents,
rat­tan is trans­formed from a wood wi­th limited use to a ver­satile, innovative mate­ri­al.
karuun is fir­mer, har­der, weather-resis­tant and even has a new cha­racteristic co­lo­rati­on. karuun pres­ents an alternative
to other mate­ri­als, wi­th
ap­p­licati­ons in multiple are­as.
karuun® color –
Bentwood with
Innovative Surfaces
karuun col­or embod­ies a truly nov­el aes­thet­ic char­ac­ter. Since the col­or is not applied to the surface but actually injected through the cap­illar­ies, karuun col­or can be processed into semi-fin­ished prod­ucts such as weav­ing ma­te­rials, ve­neers and boards. Surface imper­fections can be simply sanded away and seams are nearly invis­ible due to the uniform na­ture of the fibers. Having the option to mix additives such as nat­ural waxes and oils into the paint, en­sures simple surface fin­ish­ing and main­tenance.
One of the dis­tinct advantages of karuun is its high degree of bendability. By treating it with heat and steam, boards and rods can be eas­ily shaped with very lit­tle force or energy. karuun col­or prod­ucts are not suit­able for out­door use!
out for space’s process treats the material from the surface through to its core.

karuun col­or exists in three base materials.

karuun proof is an sustainable alternative to other wood for outdoor use.

karuun solid enables new formal scopes of design.

karuun shine offers a light transmission which is unique for natural materials.
karuun® solid –
Combining Qualities of Rattan and Bentwood
With its improved ma­te­rial prop­er­ties karuun solid is compa­ra­ble with bentwood. A clear advantage of pro­cess­ing raw rattan is its high elas­ticity and bendability. These prop­er­ties al­low rat­tan to be shaped with very lit­tle force or energy. For manufac­tur­ing fur­ni­ture, howev­er, rattan’s elas­ticity is a disadvantage because of the ef­fect it has on the strength and stiffness of the ma­te­rial. For example, the extra struts needed to increase the structural stability of a chair made of rattan de­tract from its aes­thet­ic appeal.
out for space solves this prob­lem by treating karuun solid with compostable bulking agents. In this way the nat­ural flexibility and elas­ticity of rattan is retained while at the same time lending rattan the strength of a hard wood. karuun sol­id therefore cre­ates new pos­sibilities not only for fur­ni­ture design.
karuun® proof –
rattan for outdoors
One of the main drawbacks of conventional rattan is its poor resistance to weath­ering, which is why it has all but disappeared from out­door use. By means of the pa­tented fin­ish­ing process, karuun proof can be treated to be more weath­er-resistant and more suit­able for out­door use.
On this basis, out for space is carrying out research in co­op­eration with sci­enctists and wood technology experts. Garden fur­ni­ture made of karuun proof should be as long last­ing as trop­ical woods while si­multane­ously pro­tecting the rainfor­est.
karuun® shine –
wooden board
The structural compo­sition of rattan is utili­sed to form karuun shine a lightweight ma­te­rial which is si­multane­ously perme­able to both air and light while also be­ing strong and pleas­ant to the touch.
kc Collection –
The Debut of
kc Col­lection is the first col­lection by out for space made from the new ma­te­rial, karuun color. The col­lection fea­tures four prod­ucts, all of which centre around the unique prop­er­ties of this new ma­te­rial. The col­lection’s design is char­ac­ter­ised by a clear and reduced design
language, not to mention the nov­el use of rattan as wood­en boards. kc Col­lection is therefore not only eas­ily dis­tinguish­able from tra­ditional rattan prod­ucts, but the debut of karuun color also rep­resents an innovation in fur­ni­ture.
kc rest

Bench with 100 % linen
and cotton cushions
kc time

Wall clock in several designs
with powder-coated hands
kc hang

Coat reck with metal
hanger eye
kc play

Geometric toy blocks
in all kc colors
kc shine

LED lamp, a transparent electric
cable and steel wire hanging

karuun ® color – sample case

Case with different samples
of karuun ® color
Approach & Profile –
The Rediscovery of Materials
In Asia rattan is tra­ditionally used as a ma­te­rial for fur­ni­ture and is the foundation for many pieces. With the advent of ma­te­rials such as polyrattan, howev­er, nat­ural rattan has sadly lost some of its for­mer popular­ity and signif­icance.
Especially in Eu­rope, the prop­er­ties, production processes and po­tential sustainability of the ma­te­rial are almost forgotten today. For out for space, howev­er, rattan is a source of unlim­ited po­tential and far more uses than for­merly imag­ined.
Rattan – a Proven
Material with a Long
Qualities – Benefits
and Drawbacks of
Sustainability –
an Almost Forgotten
Rat­tan or Rotan (ind.-malay) grows al­most ex­clus­ively in rain­forests and 80 % of glob­al rat­tan pro­duc­tion is in In­done­sia. The most im­port­ant genus is nat­ive to Africa and Asia and is called Cal­amus. With 374 dif­fer­ent spe­cies, Cal­amus is the most di­verse palm.
It is widely un­known that cer­tain spe­cies of rat­tan grow to a dia­met­er of 100 mil­li­meters and can reach a total length of 160 meters, mak­ing it one of the longest plants on the plan­et! Thin rat­tan called ped­dig is tra­di­tion­ally used for wick­er­work and thick­er rods are used for fur­niture frames.
The wood of the rat­tan palm is unique in its in­tern­al struc­ture. Un­like oth­er woods, the ca­pil­lar­ies of rat­tan are long single tubes which travel the length of the en­tire plant and sup­ply it with wa­ter. Due to this, rat­tan is very elast­ic when made wet and even more so when ex­posed to heat or steam. This makes fur­ther pro­cessing ef­fi­cient and gives rat­tan ad­vant­age­ous prop­er­ties such as its light weight, elasti­city and high bend­ab­il­ity.
On the oth­er hand, it isn’t pos­sible to treat the sur­face of un­pro­cessed rat­tan with con­ven­tion­al meth­ods be­cause the or­tho­sili­cic acid in its skin pre­vents ad­he­sion.
If the out­er lay­er is re­moved, sur­face treat­ment such as paint­ing and dye­ing is pos­sible, but even then the col­or will fade with time and there is only lim­ited pro­tec­tion against weath­er­ing and us­age.
This is due to the mate­ri­al’s large pores, which make it sus­cept­ible to mois­ture and mold. The elast­ic and supple wood lent to rat­tan by its poros­ity also lim­its its field of ap­plic­a­tion. Even stronger rat­tan rods with dia­met­ers of over 30 milli­meters, used as chair legs for ex­ample, need ex­tra struts to give them ad­di­tion­al sta­bil­ity.
Rat­tan grows very quickly and has sig­ni­fic­ant ad­vant­ages over oth­er types of wood. For ex­ample, rat­tan nat­ur­ally forms a sym­bi­ot­ic re­la­tion­ship with its neigh­bor­ing plants in the rain­forest, such as the cen­tur­ies old Mer­anti Tree. The rain­forest is es­sen­tial for rat­tan: this means that cul­tiv­at­ing rat­tan would pro­mote rain­forest pre­ser­va­tion or even re­for­est­a­tion as op­posed to the ex­pan­sion of mono­cul­tures in­to the rain­forest. Pur­chas­ing rat­tan products in­dir­ectly con­trib­utes to the health and pre­ser­va­tion our world’s rain­forests.
The raw material rattan has to be dried before it can be further proacessed.

After drying, rattan is processed into different semi-finished products.

Peeled rattan in particular can be applied universally.

In Indonesia the processing of rattan has a long tradition.

With its spikes rattan climbs up trees.
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Supported by EXIST Business Start-Up Grant and SIGNO – protection of ideas for commercial use

Support programs of the Federal Ministry of Economy and Energy, co-financed by the European Social Fund

In collaboration with the University of Applied Sciences Biberach

Legal Disclosure
Information in accordance with section 5 TMG.

out for space GmbH
Jaegerstrasse 23
88353 Kisslegg

+49 7563 913 8401 T
+49 7563 913 8402 F

Represented by
Julian Reuter and
Peter Kraft

Register entry
Register Number:
HRB 732938
Register Court:
Amtsgericht Ulm

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