We are all excited about the possibilities of construction in the new depth-enabled Fortress Mode, as it will incredibly expand the possibilities of strategical and aesthetic construction, giving even more personalization to our fortresses.
From my understanding, the process in the upcoming version involves mining out a floor/main tile above or below a dwarf, then placing stairs or a ramp that allows access to the new level, and continuing the process. This enables very easy construction of multiple floors, plumbing, basements, water reservoirs, etc.
For a grand dining hall, as opposed to ant-hill style apartments, the player might mine one side of the ceiling out in a line along the wall, build stairs, and repeat until they reached a height of six tiles. Then, each layer starting with the top would be removed, including the stairs. The end result would be a huge square open space.
However, this process could get very difficult for complicated structures, or simply impossible when you don't have any mountain space to build from.
The obvious and historically accurate solution seems to be scaffolding. Scaffolds could be built like bridges, or possibly produced in workshops like furniture and then uilt somewhere. Wood and metal would be the only options really, as I don't think stone would work at all.The scaffolds would serve as both temporary stairs, and a working platform for miners and engravers, allowing you to build a huge tower of scaffolds to build a Dwarven Mount Rushmore, or to smooth and engrave the entire front of your fortress. The main benefits would be ease of use, and not requiring destroyable tiles to build.
Rewalling may remove some of the usefulness of scaffoldings, but ease, speed of construction, and no material loss could still be a bonus.
[ May 14, 2007: Message edited by: Locus ]