Common types of wood grain used in ceiling fans include:

Oak: Oak has a unique texture and warm golden tone, often used for parts of the ceiling fan.
Walnut: Walnut has a dark color, rich wood grain, and prominent texture, suitable for ceiling fan designs that require dark wood.
Maple: Maple is a light-colored wood with fine texture, suitable for modern ceiling fan designs.
Cherry: Cherry wood has a reddish-brown color and warm feel, often used for traditional ceiling fan designs.
Pine: Pine has a soft wood texture, a lighter color, and less noticeable grain, making it suitable for country-style ceiling fan designs.

These are just some common types of wood grain paper. In reality, there are many other types of wood grain paper available in the market to meet different styles and needs of ceiling fan designs.