Oak plank

An oak plank is used in the Construction skill.

Construction
Four different types of logs can be taken to the Sawmill operator to be changed into planks for a price. Planks are then used in the Construction skill to make furniture. When first released, people would buy Oak Planks for 2k each. They are a commonly 'autoed' item due to the profit in plank making, and there are often a large amount of macroers walking to and fro from the Varrock East bank to the sawmill.