Real Wood Planks How Do I Get Them?

[Dwarfboysim]

How do you raise your stock of real wood planks I only have 5 and need 1000.

[mattc062]

there is no such thing as real wood planks??
all wood is made by these: Foresters - Woodcutters - Sawmills at the ratio 3 - 2 - 4

they all need to be by the pine wood trees etc.