Structure

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Colonists can build structures of a various materials, each with different beauty, flammability, and hit-points. Enclosed areas will automatically prompt colonists to build a roof unless you apply a no roof region, or if the structure is too large (over 300 cells). Structures leave ash on the ground when burnt.

Walls

Main article: Wall

Walls are impassable structures capable of supporting a roof. Walls can be built out of any building material. Power conduits may be constructed in an existing wall without the mood penalty if the conduit is not in the wall. Smoothing natural stone walls allows conduits to be placed beneath them. Walls require 5 materials to construct.

Constructed Walls

Material	Stuff cost	Beauty	Work	Mass	HP	Flammability	Market Value
Wooden Wall	5	0	95 ticks (1.58 secs)	-	195	100%	6.3
Granite Wall	5	0	810 ticks (13.5 secs)	-	510	0%	7.4
Limestone Wall	5	0	810 ticks (13.5 secs)	-	465	0%	7.4
Marble Wall	5	1	743 ticks (12.38 secs)	-	360	0%	7.2
Sandstone Wall	5	0	675 ticks (11.25 secs)	-	420	0%	6.9
Slate Wall	5	0	810 ticks (13.5 secs)	-	390	0%	7.4
Jade Wall	5	10	675 ticks (11.25 secs)	-	150	0%	27
Golden Wall	50	20	122 ticks (2.03 secs)	-	180	40%	500
Plasteel Wall	5	0	297 ticks (4.95 secs)	-	840	0%	46
Silver Wall	50	6	135 ticks (2.25 secs)	-	210	40%	51
Steel Wall	5	0	135 ticks (2.25 secs)	-	300	40%	10
Uranium Wall	5	0	257 ticks (4.28 secs)	-	750	0%	31

^{Assuming Normal quality, for the effect of other qualities, see Quality.}

Natural Walls

These cannot be constructed, only mined, but act largely like walls and are provided for comparisons sake.

Material	HP	Flammability	Beauty	Value
Plasteel Ore	8000	?	?	?
Silver Ore	1500	?	?	?
Steel Ore	1500	?	?	?
Uranium Ore	4000	?	?	?
Jade Ore	1500	?	?	?
Gold Ore	1500	0%	?	?
Compacted machinery	2000	?	?	?
Granite	900	0%	-2	?
Limestone	700	0%	-2	?
Marble	450	0%	-1	?
Sandstone	400	0%	-2	?
Slate	500	0%	-2	?

Smoothed Walls

Rather than being directly constructed like other walls, these walls are created by smoothing existing rock walls.

Material	HP	Work Required	Flammability	Beauty	Value	Cover Effectiveness
Smoothed Granite Wall	900	6,500 ticks (1.81 mins)	0%	1	20	75%
Smoothed Limestone Wall	700	6,500 ticks (1.81 mins)	0%	1	20	75%
Smoothed Marble Wall	450	6,500 ticks (1.81 mins)	0%	2	25	75%
Smoothed Sandstone Wall	400	6,500 ticks (1.81 mins)	0%	1	18	75%
Smoothed Slate Wall	500	6,500 ticks (1.81 mins)	0%	1	20	75%

Doors

Main article: Door

Doors provide entry points through walls for colonists while still keeping out enemies and wild animals. Pawns manually open doors which causes a delay as they try to pass through, as opposed to autodoors which open on demand and allow faster passage. All doors are generally locked to hostile entities, including prisoners, raiders and mad animals. A door can be marked to "Hold open," which means the next time it is opened, it will stay open, and then all pawns can pass through. A door can also be marked "Forbid". Colonists and tamed animals don't use forbidden doors, even if they're held open. However visitors, traders, and colonists on mental breakdowns ignore the forbidden status.

Material	Stuff cost	Beauty	Work	Mass	HP	Flammability	Door Speed	Market Value
Wooden Door	25	0	595 ticks (9.92 secs)	-	104	100%	120%	32
Granite Door	25	0	5,100 ticks (1.42 mins)	-	272	0%	45%	41
Limestone Door	25	0	5,100 ticks (1.42 mins)	-	248	0%	45%	41
Marble Door	25	1	4,675 ticks (1.3 mins)	-	192	0%	45%	39
Sandstone Door	25	0	4,250 ticks (1.18 mins)	-	224	0%	45%	38
Slate Door	25	0	5,100 ticks (1.42 mins)	-	208	0%	45%	41
Jade Door	25	10	4,250 ticks (1.18 mins)	-	80	0%	90%	140
Golden Door	250	20	765 ticks (12.75 secs)	-	96	40%	100%	2505
Plasteel Door	25	0	1,870 ticks (31.17 secs)	-	448	0%	100%	230
Silver Door	250	6	850 ticks (14.17 secs)	-	112	40%	100%	255
Steel Door	25	0	850 ticks (14.17 secs)	-	160	40%	100%	51
Uranium Door	25	0	1,615 ticks (26.92 secs)	-	400	0%	75%	156

^{Assuming Normal quality, for the effect of other qualities, see Quality.}

Bridge

Main article: Bridge

Bridges are structures that can be built on water. Bridges allow more rapid movement across water. Once built, they can support many structures, including wooden walls, but not particularly heavy structures including any other type of wall. Bridges allow for easier building in swampy biomes. Floors may not be built atop bridges.

Bridges cost 12 wood each. They can be damaged or destroyed by fire or explosions, including whatever was built on top.

Autodoors

Main article: Autodoor

Autodoors are regular doors that open and close 4x as fast, but need to constantly draw 50 W of power. Lacking sufficient power, they lose the speed bonus and act like regular doors, until power is returned.

Powered autodoors made of stone open slightly faster than regular wooden doors. Powered autodoors made of any material other than stone open fast enough that pawns are not slowed down when passing through.

In all other aspects, an autodoor is identical to a regular door made of the same material.

Construction requires 30% additional work, 40 steel and 2 components on top of the 25 base material for the regular door.

For more info, see the main article Autodoor.

Material	Stuff cost	Beauty	Work	Mass	HP	Flammability	Door Speed	Market Value
Wooden Autodoor	25	0	770 ticks (12.83 secs)	-	104	100%	120%	173
Granite Autodoor	25	0	6,600 ticks (1.83 mins)	-	272	0%	45%	186
Limestone Autodoor	25	0	6,600 ticks (1.83 mins)	-	248	0%	45%	186
Marble Autodoor	25	1	6,050 ticks (1.68 mins)	-	192	0%	45%	184
Sandstone Autodoor	25	0	5,500 ticks (1.53 mins)	-	224	0%	45%	182
Slate Autodoor	25	0	6,600 ticks (1.83 mins)	-	208	0%	45%	186
Jade Autodoor	25	10	5,500 ticks (1.53 mins)	-	80	0%	90%	285
Golden Autodoor	250	20	990 ticks (16.5 secs)	-	96	40%	100%	2645
Plasteel Autodoor	25	0	2,420 ticks (40.33 secs)	-	448	0%	100%	375
Silver Autodoor	250	6	1,100 ticks (18.33 secs)	-	112	40%	100%	395
Steel Autodoor	25	0	1,100 ticks (18.33 secs)	-	160	40%	100%	192
Uranium Autodoor	25	0	2,090 ticks (34.83 secs)	-	400	0%	75%	295

^{Assuming Normal quality, for the effect of other qualities, see Quality.}

Column

Main article: Column

Columns are passable structures which are capable of holding a roof which do not block sight, or movement and look quite nice. They have x/1.875 of a wall's normal health, 4x the beauty, and 4x the value. They also have 25% cover effectiveness and do not slow down pawns. These were introduced in 1.1.

Material	Stuff cost	Beauty	Work	Mass	HP	Flammability	Market Value
Wooden Column	20	5	525 ticks (8.75 secs)	-	104	100%	26
Granite Column	20	5	4,500 ticks (1.25 mins)	-	272	0%	34
Limestone Column	20	5	4,500 ticks (1.25 mins)	-	248	0%	34
Marble Column	20	8	4,125 ticks (1.15 mins)	-	192	0%	33
Sandstone Column	20	5	3,750 ticks (1.04 mins)	-	224	0%	32
Slate Column	20	5	4,500 ticks (1.25 mins)	-	208	0%	34
Jade Column	20	22	3,750 ticks (1.04 mins)	-	80	0%	114
Golden Column	200	40	675 ticks (11.25 secs)	-	96	40%	2000
Plasteel Column	20	5	1,650 ticks (27.5 secs)	-	448	0%	186
Silver Column	200	16	750 ticks (12.5 secs)	-	112	40%	205
Steel Column	20	5	750 ticks (12.5 secs)	-	160	40%	41
Uranium Column	20	2	1,425 ticks (23.75 secs)	-	400	0%	125

^{Assuming Normal quality, for the effect of other qualities, see Quality.}

Roof

A single wall pillar will support a roof in the area around it.

A roof is an area of cover from the elements. A roof can extend up to 6 tiles from a wall, so roofed interiors have a maximum size of 12 cells across the shortest side. Interior areas built larger than this will remain partially unroofed. Larger roofed areas can be built with the use of columns or interior walls as pillars. Indoor roofs are automatically built by builders. To build a roof outdoors, a "Build roof area" must first be drawn. Leaving 25% of room area or more unroofed makes the room status as "Room unroofed" which, among other effects, equalises room temperature to outside temperature.

Drawing roof areas

Areas can be designated to have a roof, or not have a roof by drawing either a Build roof area or Remove roof area. This can be used to create outdoor roofed areas (to prevent snowfall or item deterioration), or indoor unroofed areas (protected Solar panels, indoor growing areas). If there is no supporting wall or rock within 6 tiles, no roof will be built.

Roof collapse

A roof will collapse if the last supporting wall or rock is removed, whether by mining, deconstruction, or destruction. Roof collapses cause injuries to colonists and damage items. Normal collapsed roof leaves filth. Collapsed overhead mountain will leave collapsed rocks. Pawns and objects caught under collapsed rocks will be utterly destroyed.

Roof deconstruction

Drawing a "Remove roof area" will cause colonists to remove a constructed roof. Constructors will automatically go and safely remove the roofs without risk of collapse. Overhead Mountains cannot be removed this way, only by triggering a collapse.

Version History

• 0.3.410 - The unpowered "Simple Door" added.
• 0.4.460 - Stone wall health raised from 400 to 650.

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Architect

Structure

Animal flap • Autodoor • Bridge • Column • Door • Fence • Fence gate • Wall