* '''The nails and plank are consumed shortly after starting the action so do not move while building or the action will be aborted and the resource lost.'''
* A building plan with no walls will decay in a few real-life days so make sure to start at least one wall.
=== Inner walls ===
To plan inner walls activate a [[mallet]] or [[trowel]], right-click a tile border inside the house and select ''Plan'' > ''Inner wall''. Select a wall type and continue as explained above.
=== Tools required ===