Alder wood has extrely goot processing performance: Red birch has good processing performance and is very suitable for turning and polishing. It is easy to fix with nails, screws and glue. It can be sanded, painted or dyed to obtain a good surface. It is easy to dry, with little quality degradation after drying, and has good stability. Physical properties: Red birch is a relatively soft medium-density hardwood with low bending resistance, shock resistance and steel behavior.
1.Specific gravity: 0.41.
2.Average weight: 449 kg/m3.
3.Elastic modulus: 9515 MPa
4.Hardness: 2625 Newton
In a raised panel door, a large panel is fitted into a groove in the interior edge of a more dimensionally stable frame. The panel is sized slightly smaller than the actual dimension that the grooved frame will accommodate and simply rests in the groove without being physically attached to the frame.