Siberian larch becomes more and more requested due to environmental aspects. Larch is suited for indoor and outdoor building as a replacement for creosoted material. The timber is naturally very durable and requires no harmful chemicals to preserve it. On the European continent Siberian larch is widely specifield due to the banning of CCA and other chemical preservatives.
In view of it`s special natural qualities and the enormous supply combined with good forest policy it is clear that Siberian larch is the wood to compete with many tropical woods.
Larch is the alternative today and for the distant future.
Because of the high density and resin content it is important to dry to the correct moisture content for the application:
Flooring and inside siding 8 ±2% MC
Outside siding and terracce 18-24 % MC
Larch is generally easy to work and glues well. Some pre drilling is advised at board ends when nailing.
Durability:
10-25 years in ground contact, terracce boards
50-100 years unprotected outdoors
100-150 years protected outdoors
Shrinkage similar to hardwoods because of high density.



Tree

Density(w12)

Solidity

Bruise Proof
Brinelli scale

OAK

690

675

3,7

LARCH

660

435

3,2

BIRCH

650

465

2,6

PINE

500

285

1,6

FIR

445

260

1,3