oh boy

code/game/objects/structures/beds_chairs/chair.dm

@@ -454,7 +454,7 @@
 	desc = "A bronze bar stool with red silk for a pillow."
 	icon_state = "barbrass"
 	item_chair = /obj/item/chair/stool/bar/bronze
-	buildstacktype = /obj/item/stack/tile/bronze
+	buildstacktype = /obj/item/stack/sheet/bronze
 	buildstackamount = 1
 
 /obj/structure/chair/stool/brass
@@ -470,7 +470,7 @@
 	desc = "A bronze stool with a silk top for comfort."
 	icon_state = "stoolbrass"
 	item_chair = /obj/item/chair/stool/bronze
-	buildstacktype = /obj/item/stack/tile/bronze
+	buildstacktype = /obj/item/stack/sheet/bronze
 	buildstackamount = 1
 
 /obj/item/chair/stool/brass
@@ -575,7 +575,7 @@
 	desc = "A spinny chair made of bronze. It has little cogs for wheels!"
 	anchored = FALSE
 	icon_state = "brass_chair"
-	buildstacktype = /obj/item/stack/tile/bronze
+	buildstacktype = /obj/item/stack/sheet/bronze
 	buildstackamount = 1
 	item_chair = null
 

code/game/objects/structures/door_assembly_types.dm

@@ -240,3 +240,14 @@
 	airlock_type = /obj/machinery/door/airlock/wood
 	mineral = "wood"
 	glass_type = /obj/machinery/door/airlock/wood/glass
+
+/obj/structure/door_assembly/door_assembly_bronze
+	name = "bronze airlock assembly"
+	icon = 'icons/obj/doors/airlocks/clockwork/pinion_airlock.dmi'
+	base_name = "bronze airlock"
+	airlock_type = /obj/machinery/door/airlock/bronze
+	noglass = TRUE
+	material_type = /obj/item/stack/tile/bronze
+
+/obj/structure/door_assembly/door_assembly_bronze/seethru
+	airlock_type = /obj/machinery/door/airlock/bronze/seethru

code/game/objects/structures/girders.dm

@@ -442,19 +442,19 @@
 		to_chat(user, "<span class='notice'>You start slicing apart [src]...</span>")
 		if(W.use_tool(src, user, 40, volume=50))
 			to_chat(user, "<span class='notice'>You slice apart [src].</span>")
-			var/obj/item/stack/tile/bronze/B = new(drop_location(), 2)
+			var/obj/item/stack/sheet/bronze/B = new(drop_location(), 2)
 			transfer_fingerprints_to(B)
 			qdel(src)
 
 	else if(istype(W, /obj/item/pickaxe/drill/jackhammer))
 		to_chat(user, "<span class='notice'>Your jackhammer smashes through the girder!</span>")
-		var/obj/item/stack/tile/bronze/B = new(drop_location(), 2)
+		var/obj/item/stack/sheet/bronze/B = new(drop_location(), 2)
 		transfer_fingerprints_to(B)
 		W.play_tool_sound(src)
 		qdel(src)
 
-	else if(istype(W, /obj/item/stack/tile/bronze))
-		var/obj/item/stack/tile/bronze/B = W
+	else if(istype(W, /obj/item/stack/sheet/bronze))
+		var/obj/item/stack/sheet/bronze/B = W
 		if(B.get_amount() < 2)
 			to_chat(user, "<span class='warning'>You need at least two bronze sheets to build a bronze wall!</span>")
 			return 0

code/game/objects/structures/tables_racks.dm

@@ -597,7 +597,7 @@
 	icon = 'icons/obj/smooth_structures/brass_table.dmi'
 	icon_state = "brass_table"
 	resistance_flags = FIRE_PROOF | ACID_PROOF
-	buildstack = /obj/item/stack/tile/bronze
+	buildstack = /obj/item/stack/sheet/bronze
 	canSmoothWith = list(/obj/structure/table/reinforced/brass, /obj/structure/table/bronze)
 
 /obj/structure/table/bronze/tablelimbsmash(mob/living/user, mob/living/pushed_mob)

code/game/objects/structures/window.dm

@@ -875,3 +875,26 @@ GLOBAL_LIST_EMPTY(electrochromatic_window_lookup)
 			return
 	..()
 	update_icon()
+
+/obj/structure/window/bronze
+	name = "brass window"
+	desc = "A paper-thin pane of translucent yet reinforced brass. Nevermind, this is just weak bronze!"
+	icon = 'icons/obj/smooth_structures/clockwork_window.dmi'
+	icon_state = "clockwork_window_single"
+	glass_type = /obj/item/stack/tile/bronze
+
+/obj/structure/window/bronze/unanchored
+	anchored = FALSE
+
+/obj/structure/window/bronze/fulltile
+	icon_state = "clockwork_window"
+	smoothing_flags = SMOOTH_TRUE
+	canSmoothWith = null
+	fulltile = TRUE
+	flags_1 = PREVENT_CLICK_UNDER_1
+	dir = FULLTILE_WINDOW_DIR
+	max_integrity = 50
+	glass_amount = 2
+
+/obj/structure/window/bronze/fulltile/unanchored
+	anchored = FALSE