Here's the first look at the Carpentry skill, which will allow players to construct their own buildings and objects.
Tentative Carpentry interface.
To start the process, a player uses a tool, such as a saw, with material, such as a log. The Carpentry interface will appear displaying an array of creatable objects. After choosing an object, the player finds a place to construct the object, indicated by a transparent rectangle.
A rectangle indicates whether the location is valid for placing the object.
Just like that, you can make a nice piece of handiwork.