Oak door

Oak doors 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.

Oak doors yield 600XP 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.