Timber

Hue of the wood varies from silvery-grey to light brown, sometimes with reddish tinge. The wood is highly valued throughout the world as a source material for a wide range of products: construction materials, finishing agents, furniture, interior items, musical instruments, etc.

Paulownia wood is strong, but soft and steady against bending and twisting at the same time.

Due to high density/mass ratio, Paulownia wood is considered one of the best construction materials. It’s easily treated. A lot of craftsmen prefer it because of the strength, smoothness and lack of defects.

Mass: Paulownia wood is even lighter than cork wood, which, to this day, has been considered to be the lightest. It is lightweight and extremely strong at the same time, which is ideal, when this balance is required. An average mass of one cubic meter of Paulownia wood is approximately 208-300 kilograms, which is four times lighter than oak wood (one cubic meter has 850 kilograms in weight) and half lighter than pine wood (one cubic meter has 482 kilograms in weight).

Solidity: Paulownia wood has the highest solidity/mass ratio among woody species. Besides, Paulownia is resistant to load deformation and humidity.

Paulownia wood has a low flammability risk. It inflames at the temperature twice as much (400°С) as the inflammation temperature of conifer wood (fir, pine). In ancient times, the Japanese made their wardrobes and chests of Paulownia to keep their property (clothes, jewelry, and valuable papers) safe from the fire.

It is also resistant to the wood-boring beetles and termites.

Stability: Wood air-drying takes at least 30 days. Planks can be dried in ovens at high temperature over 24 hours until the moisture content in wood reaches 10-12%. Dried material doesn’t curl. Shrinkage factor of the wood dried in oven in comparison with green state is only 2.2% crosswise and 4% lengthwise.

Wood cost/tree growth rate ratio profitability of Paulownia in comparison with other tree species.

Cost: World price of one cubic meter of Paulownia varies from 200 to 800 USD, depending on the manufacturing rate.

Additionally, due to its ultrafast growth, Paulownia takes the lead over other tree species in the annual mass increase.

 

Species

Age, years

Height, meters

Diameter, centimeters

Paulownia

6

12

23

Acacia

16

4

7

Eucalyptus

20

16

23

Pinus

20

7

6.8

Pices

50

7.8

14.6

Abies

17

14

19

Fagus

50

7

14

Castanea

50-150

23.3

29.4

 

 

Paulownia wood absorbs water insignificantly, which favors mordant and lacquers economy. Goods made of Paulownia wood don’t change their shape and size under the influence of severe weather and don’t easily decay.