FrenchTimber

Douglas Fir

Introduction

Annual sawn timber production : 810.000 m3

Douglas Fir : Pseudotsuga menziesii

Originate from North America, Douglas-Fir has been introduced in France in 1842. Wide-spread today, its production keeps growing (+15% a year). Its rapid growth gives birth to tall trees (50 meters), with a large diameter (2 meters), straight-grained, thick and checked bark.

Wood description

Its reddish-brown heartwood is distinctive from its cream white sapwood. Douglas-Fir is straightgrained, with medium texture and sound knots.

Conditions of implementation

Preservation

Oak heartwood has naturally high durability.
It is used without any treatment (Class 3: timber exposed to weathering). Sapwood is easy to treat.
After impregnation, Oak can be use in class 4 ( contact with water ).

Mechanical characteristics

Figures given at 12% moisture content
( straight-grain timber and free from defects)