Woods Type Used For Key Chains:
Hard Maple: Hard maple is heavy, hard, strong, tough, stiff, close grained and possesses a uniform texture. It sands to a beautiful tight finish.
Soft Maple: These trees tend to be very similar to the hard maples but much lighter in density. The sapwood can be very white and often show nice curl. The heartwood is tan to gray in color, often with extreme color changes on one board. Soft maple is almost never sorted by color.
Steam Birch: All birch has a fine and uniform texture, closed pored and no significant odor. Birch dries with a fair amount of shrinkage. It loses almost 16% of its volume going from green to dry lumber and does like to warp and twist if enough weight is not applied to the green lumber as it air dries.