v0.31:Grate

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A grate is a Template:L-type item. It is used as a construction material for wall grates and floor grates. Grates can be constructed from Template:L or Template:L (with the Template:L Template:L at a Template:L), wood (with the Template:L labor in a Template:L), Template:Ls (with the Template:L labor at a Template:L), or Template:L (with the Template:L labor at a Template:L).

Wall Grate

A wall grate is basically a Template:L, but with 2 differences:

• It is a Template:L instead of a Template:L. It doesn't overwrite the tile below it, and it can be smashed by building destroyers.
• It can be linked to a Template:L or Template:L. Once linked, it works like a linked Template:L which doesn't stop fluids or Template:Ls when closed.

Wall grates set the boundary for the room being resized, but they do not provide support for the doors construction. Unlike a constructed wall, the grate has some quality level and can be decorated.

Floor Grate

A floor grate blocks Template:L and item movement like a Template:L, but it lets Template:L, Template:L, and ranged attacks through like an open tile. It doesn't block line of sight. It can be linked. Triggered, it opens like a hatch, but with a 100-tick delay.

Floor grates must be attached Template:L (i.e. not diagonally) to firm ground or some solid construction (a wall, floor, etc), not (just) other grates.

A floor grate does NOT count as solid construction. It will not support any buildings or constructions. However, you can designate a construction to be built orthogonally to it with no other supports. This will cause the construction to cave-in immediately after being completed. This can be useful for controlled cave-ins.

One useful feature is that Template:L does not collect on floor grates. You may put them around places where blood often collects, such as around Template:L, and it will simply fall down below. Doing this will help protect against illnesses spread by blood. Sadly, since floor grates will not support buildings since it isn't a stable floor, you won't be able to put floor grates on all four surrounding tiles or the well will cave in.

You can not have a Template:L on floor grates.

Tiles below a floor grate do count as inside. They will not stop light.

Bars vs. Grates

Vertical and horizontal Template:L seem to be functionally identical. The difference between grates and bars is that bars can only be made of metal (and other materials that come in Template:Ls) but they can be constructed by any dwarf from Template:L and do not require an intermediate production step.

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