The Oak door is a door that can be added to the door hotspot in the Dungeon of a player-owned house with a Construction level of 74. They are the weakest of the three tiers of dungeon doors, and require 10 oak planks to be constructed. As with all dungeon doors, they can be either forced open or have the lock picked to be opened. The success rate of these actions are determined by the player’s Strength and Thieving levels.
Oak doors yield 600 experience when built and are often used as an alternative method of training Construction since you can have a Butler deliver you 20 oak planks around the time you finish building both of them. This method is around 350-360k xp an hour. With the demon butler delivering 20 oak planks and being able to build two doors in the time the demon butler returns xp rates of 500k xp an hour can be reached.