BUILDABLE cult door...

code/game/machinery/doors/airlock.dm

@@ -329,6 +329,7 @@
 	icon = 'icons/obj/doors/Doorcult.dmi'
 	hackProof = 1
 	aiControlDisabled = 1
+	assembly_type = /obj/structure/door_assembly/door_assembly_cult
 	var/friendly = FALSE
 	var/openingoverlaytype = /obj/effect/overlay/temp/cult/door/unruned
 
@@ -342,6 +343,7 @@
 	name = "runed airlock"
 	icon = 'icons/obj/doors/Doorcultruned.dmi'
 	openingoverlaytype = /obj/effect/overlay/temp/cult/door/unruned
+	assembly_type = /obj/structure/door_assembly/door_assembly_cultruned
 
 /obj/machinery/door/airlock/cult/bumpopen(mob/living/M as mob)
 

code/game/objects/items/stacks/sheets/sheet_types.dm

@@ -212,6 +212,7 @@ var/global/list/datum/stack_recipe/cardboard_recipes = list (
  */
 
 var/global/list/datum/stack_recipe/runed_metal_recipes = list ( \
+	new/datum/stack_recipe("runed door", /obj/machinery/door/airlock/cult, 1, time = 50, one_per_turf = 1, on_floor = 1),
 	new/datum/stack_recipe("runed girder", /obj/structure/cultgirder, 1, time = 50, one_per_turf = 1, on_floor = 1), \
 	new/datum/stack_recipe("pylon", /obj/structure/cult/cultpylon, 3, time = 40, one_per_turf = 1, on_floor = 1), \
 	new/datum/stack_recipe("forge", /obj/structure/cult/cultforge, 5, time = 40, one_per_turf = 1, on_floor = 1), \

code/game/objects/structures/door_assembly.dm

@@ -139,6 +139,21 @@ obj/structure/door_assembly/multi_tile/Move()
 		bound_width = world.icon_size
 		bound_height = width * world.icon_size
 
+/obj/structure/door_assembly/door_assembly_cult
+	icon = 'icons/obj/doors/Doorcult.dmi'
+	base_icon_state = "construction"
+	base_name = "engraved airlock"
+	airlock_type = "/cult"
+	glass = -1
+
+
+/obj/structure/door_assembly/door_assembly_cultruned
+	icon = 'icons/obj/doors/Doorcultruned.dmi'
+	base_icon_state = "construction"
+	base_name = "runed airlock"
+	airlock_type = "/cult/runed"
+	glass = -1
+
 
 /obj/structure/door_assembly/attackby(obj/item/W as obj, mob/user as mob, params)
 	if(istype(W, /obj/item/weapon/pen))