Alder
Botanical Name
Alnus glutinosa
Other Names
Grey Alder
Origin
Europe
Sapwood Colour
Not distinct from heartwood
Heartwood Colour
Light brown turning bright orange
Grain
Straight occasionally wavy
Texture
Fine
Common Uses
Boat building, carving, turning, furniture, internal joinery, musical instruments, venetian blinds, toys
Physical Properties at MC 12%
| Density | kg/m3 | 528 |
| Specific gravity | – | 0.41 |
| Hardness | N | 2950 |
| Bending Strength | N/mm2 | 73.2 |
| Stiffness | N/mm2 | 92800 |
| Radial shrinkage | % | 4 |
| Tangential shrinkage | % | 8 |
Working Properties
| Stability | xxx | Bending | xx |
| Machining | xxx | Screwing | xx |
| Gluing | xxx | Painting | xxxx |
| Sanding | xx | Staining | xxxx |
xxxx = excellent
xxx = good
xx = fair
x = not good