Difference between revisions of "Grate"

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Tools	Altar • Bookcase • Display (display case • pedestal) • Hive • Nest box
Access	Bars • Bridge • Door (portal) • Floodgate • Grate • Hatch • Road • Window
Constructions	Floor • Fortification • Ramp • Stairs • Wall
Machine and trap parts	Axle • Gear assembly • Lever • Mechanism • Millstone • Pipe section • Pressure plate • Roller • Screw pump • Support • Trap • Water wheel • Windmill
Other buildings	Archery target • Vermin catcher's shop • Siege engine • Trade depot • Wagon • Well
Related articles	Design strategies • Bedroom design • Furniture industry

Grate
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Construction
Rooms
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Revision as of 16:50, 19 January 2019

v50.12 · v0.47.05

This article is about the current version of DF.
Note that some content may still need to be updated.

More Info · V

xTATTEREDx · +FINE+ · *SUPERIOR* · ≡EXCEPTIONAL≡ · ☼MASTERWORK☼

A grate is a furniture-type item. It is used as a construction material for wall grates and floor grates. Grates can be constructed from stone or ore (with the masonry labor at a mason's workshop), wood (with the carpentry labor in a carpenter's workshop), metal bars (with the blacksmithing labor at a forge), or glass (with the glassmaking labor at a glass furnace).

Wall grate

A wall grate is basically a fortification, but with two differences:

It is a building instead of a construction. It doesn't overwrite the tile below it, and it can be smashed by building destroyers.
It can be linked to a lever or pressure plate. Once linked, it works like a linked door which doesn't stop fluids, arrows or Miasma when closed.

Wall grates act as boundaries for rooms being resized, but they do not provide support for doors. Unlike a constructed wall, the grate has some quality level and can be decorated.

Floor grate

A floor grate is similar to a floor or a closed floor hatch in that it can be walked upon and blocks creature and item movement between Z-levels. However, it lets water and magma through like an open tile. Floor grates block projectiles, unlike wall grates. They do not block line of sight. Floor grates can be linked to a lever or a pressure plate. When triggered, a floor grate opens like a hatch, but with a 100-tick delay.

Floor grates must be attached orthogonally (i.e. not diagonally) to firm ground or some solid construction (a wall, floor, etc.), not (just) other grates. Floor grates placed directly on top of a floor or staircase still require orthogonal support, even though their own tile should be able to provide support. Attempting to construct a floor grate supported only by its own tile will display the message "Surrounded by empty space". Removing the orthogonal support from a constructed floor grate will cause it to harmlessly deconstruct.

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.

Stockpiles cannot be placed over floor grates.

Like bridges and floor hatches, floor grates will mark areas beneath them as being "inside", even if they are retracted.

If a floor grate is placed right on top of a soil floor or muddy floor it will prevent grass, shrubs and saplings from growing.

Floor grates do not block fishing or taking water directly from a water source, nor do they block collecting sand or clay, though they do prevent wells from working if between the well and the water.

Floor grates over empty space block miasma from rising through them (miasma will normally flow upward through empty space).

Bars vs. grates

Vertical/horizontal bars seem to be functionally identical to wall/floor grates. The only notable difference between grates and bars is that grates are finished goods (which must be produced from raw materials) and have quality levels (and thus boost your fortress's architecture value significantly), while bars are simply raw materials that can be thrown into place at a moment's notice and then deconstructed later should they be needed later for other jobs.

Another difference is that building destroyers will topple bars, destroying them in seconds compared to minutes with grates.

One other important difference is that grates can be made from wood and stone, both of which are generally much more plentiful than the materials for bars.

Notes

If you wish to remove a floor piece that is linked to a grate, make sure that the dwarf that carries out the job does not stand on the grate, or remove all grates first. The grate will not be supported, and fall (with your uncareful dwarf on it), and you will experience the famous idiom: "It's not the fall that kills you, it's the sudden stop at the end."
On a similar note, be cautious when removing a large number of grates next to each other, as a dwarf trying to remove a grate will stand on one his neighbor is about to yank out from under his feet. This can be largely avoided by removing them in batches of alternating grates (IE: Grates 1, 3, 5 then 2, 4, 6, etc...)
Floor grates can be used in watchtowers: place a locked-in animal on top of them, and let them observe possible intruders from above. Since no alternative route to the watcher exists, building destroyers cannot destroy the grate. Getting the animal in place can be tricky, if the floor is all grates - pitting is an option. Bonus points for combining this with an automated magma release valve.

Bugs

Creatures and dwarves pushed by water flow can be pushed through wall grates. ^Bug:5458

@@ Line 23: / Line 23: @@
 A '''floor grate''' is similar to a floor or a closed [[floor hatch]] in that it can be walked upon and blocks [[creature]] and item movement between Z-levels. However, it lets [[water]] and [[magma]] through like an open tile. Floor grates block projectiles, unlike wall grates. They do not block line of sight. Floor grates can be linked to a [[lever]] or a [[pressure plate]]. When triggered, a floor grate opens like a hatch, but with a 100-tick delay.
-Floor grates must be attached [[orthogonal]]ly (i.e. not diagonally) to firm ground or some solid construction (a [[wall]], [[floor]], etc.) if they are to be supported over empty space, not (just) other grates.  Floor grates can also be placed directly on top of a non-constructed floor or [[stairs|staircase]], rather than empty space, in which case it doesn't need any support next to it.
+Floor grates must be attached [[orthogonal]]ly (i.e. not diagonally) to firm ground or some solid construction (a [[wall]], [[floor]], etc.), not (just) other grates.  Floor grates placed directly on top of a floor or [[stairs|staircase]] still require orthogonal support, even though their own tile should be able to provide support. Attempting to construct a floor grate supported only by its own tile will display the message "Surrounded by empty space". Removing the orthogonal support from a constructed floor grate will cause it to harmlessly deconstruct.
 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.