|This article is about an older version of DF.|
Supports are built through the uild menu and require one stone, log, block or bar of any type. They are built in two stages - first the material is moved into place by an architect, and then (depending on material) completed by either a carpenter (for wood), metalsmith (for metals), or mason (for all other materials, such as stone, glass, or soap).
Supports do not create a floor tile on the Z-level above. Supports must be built on solid surfaces, so stacking supports atop each other only works if a floor is added between. Supports do not block movement, fluids or missile fire.
Supports can hold up both ceilings (from below) and floors (from above).