| Name | Common Alder (alnus glutinosa) |
| Type | Hardwood. |
| Other Names | Includes black alder, gray alder, and red alder. |
| Sources | Grows in northern hemisphere - Europe, Russia, western Asia, and Japan. Red alder grows on Pacific coast of United States and Canada. |
| Appearance | Straight grained, fine textured, orange brown sapwood and heartwood with no outstanding figure. |
| Physical Props | Moderately heavy and soft with low bending strength, shock resistance, stiffness, and decay resistance. |
| Working Props | Nails, screws, glues, and works well. Stains and polishes satisfactorily and sometimes stained to match other cabinet woods. Carves and turns quite well. |
| Uses | Used for broom and brush handles, textile rollers, toys, clogs, artificial limbs, cabinet work, plywood cores, and veneer. |
| Name | Red Alder (Alnus rubra) |
| Type | Hardwood. |
| Other Names | Also known as Oregon alder, western alder. |
| Sources | Grows along the Pacific coast of United States. |
| Appearance | Straight grained and even textured. Pale yellow to reddish brown with indistinct boundary between heartwood and softwood. |
| Physical Props | Soft, light, not particularly strong, with good elasticity, good steam bending, medium stiffness, low shock resistance, low decay resistance, and good stability in service. |
| Working Props | Works easily with hand or machine tools. Turns and carves extremely well. Marginal nail and screw holding properties. Glues, sands, stains and finishes easily. |
| Uses | Commonly used for panel core stock (one of the easiest commercial timbers to peel). Also used for interior furniture, sash, doors, millwork, and carving. |