Column

Columns are passable structures primarily used to hold up roofs

Acquisition

Columns require 20 Stuff (Metallic/Woody/Stony, 200 for SMVs) and take 750 ticks (12.5 secs) to build.

Summary

Columns can hold roofs up to 6 tiles away in all directions, like a wall. Destroying all of a roof's supports will cause it to instantly fall, which will injure and possibly kill anything below. Columns also provide a minor beauty increase.

Columns can't usually be stood on, like a fence or barricade. Columns do not block LoS, can be walked through without slowing anyone down, and provide 25% cover for pawns shooting behind them.

Requirements

Columns are needed to satisfying the requirements of a ritual room or throne room (for nobles Knight and above). If a room's requirements are not met, then colonists demanding them will become unhappy.

Analysis

For holding up the roof, it's usually better to just create a lone wall, which supports the same amount of roof and costs 4x less. Columns provide less cover for raiders, can be walked over, and don't block the radius of orbital trade beacons. Columns also have much less health than a wall, which can be helpful when creating a falling roof trap.

Like sandbags, barricades, and fences, columns usually prevent raiders from firing on top of them. As columns provide less cover, they have a small niche in killboxes when you can directly fire on raiders passing through. Note that, due to their decreased health, columns should be replaced by barricades as you increase in firepower.

Stats table

Column	Beauty	Work to Build	HP	Flammability	Market Value
Material	Beauty	Work to Build	HP	Flammability	Market Value
Bioferrite	1	001,875 ticks (31.25 secs)	320	75%	22
Gold	40	000,675 ticks (11.25 secs)	96	40%	2,000
Granite blocks	5	004,640 ticks (1.29 mins)	272	0%	35
Limestone blocks	5	004,640 ticks (1.29 mins)	248	0%	35
Marble blocks	8	004,265 ticks (1.18 mins)	192	0%	33
Plasteel	5	001,650 ticks (27.5 secs)	448	0%	186
Sandstone blocks	5	003,890 ticks (1.08 mins)	224	0%	32
Silver	16	000,750 ticks (12.5 secs)	112	40%	205
Slate blocks	5	004,640 ticks (1.29 mins)	208	0%	35
Steel	5	000,750 ticks (12.5 secs)	160	40%	41
Jade	22	003,750 ticks (1.04 mins)	80	0%	114
Uranium	2	001,425 ticks (23.75 secs)	400	0%	125
Wood	5	000,525 ticks (8.75 secs)	104	100%	26

Styles

Ideoligions allow the selection of styles which then change the texture of the certain items and buildings when constructed by the colony. These style variants can be crafted if the colony has the selected style, or can be looted from raiders from factions with the requisite style.