- For throne room, see Office.
A throne or chair is a piece of furniture that dwarves use in their daily routines once built as a seat (the generic term). A throne can be made from stone at a mason's workshop with masonry, 3 metal bars at a forge with blacksmithing, glass at a glass furnace with glassmaking, or from wood at a carpenter's workshop by a dwarf with the carpentry labor (where it's listed as a "chair"). The material has no effect on its functionality; all thrones work the same. Note that for an equal skill level, wood chairs are produced faster than rock thrones[Verify], though different materials have different final base value multipliers.
The build menu option chair will allow you to place any throne/chair as a "seat", but only indoors.
Seats, like tables, are an obvious part of dining rooms -- Dining at a seat in a high-quality dining hall will give an (additional) happy thought. If a dwarf wants to eat, they will look for a free seat. If they don't find one, or one without a free table next to it, they will have an unhappy thought. Dwarves do not share tables; a dwarf sitting at a seat will have exclusive use of the table next to it. Having enough seats and tables and placing them in an unambiguous 1:1 pattern avoids these bad thoughts. Seats are also used to create offices (and throne rooms, essentially the same thing) for nobles.
Some call it the "pompous placement".