Resolves Fox's concerns (Hopefully)

code/game/objects/structures/stool_bed_chair_nest/bed.dm

@@ -15,7 +15,7 @@
 	buckle_lying = 1
 	burn_state = FLAMMABLE
 	burntime = 30
-	parts = 2
+	buildstackamount = 2
 	var/movable = 0 // For mobility checks
 
 /obj/structure/stool/bed/MouseDrop(atom/over_object)
@@ -25,7 +25,7 @@
 	name = "psych bed"
 	desc = "For prime comfort during psychiatric evaluations."
 	icon_state = "psychbed"
-	parts = 5
+	buildstackamount = 5
 	can_buckle = 1
 	buckle_lying = 1
 
@@ -34,8 +34,8 @@
 	icon_state = "dogbed"
 	desc = "A comfy-looking dog bed. You can even strap your pet in, in case the gravity turns off."
 	anchored = 0
-	parts = 10
-	is_wooden = 1
+	buildstackamount = 10
+	buildstacktype = /obj/item/stack/sheet/wood
 
 /obj/structure/stool/bed/dogbed/ian
 	name = "Ian's bed"
@@ -52,7 +52,7 @@
 
 /obj/structure/stool/bed/attack_animal(var/mob/living/simple_animal/M)//No more buckling hostile mobs to chairs to render them immobile forever
 	if(M.environment_smash)
-		new /obj/item/stack/sheet/metal(loc)
+		new buildstacktype(loc, buildstackamount)
 		qdel(src)
 
 /*

code/game/objects/structures/stool_bed_chair_nest/chairs.dm

@@ -4,7 +4,7 @@
 	icon_state = "chair"
 	buckle_lying = 0 //you sit in a chair, not lay
 	burn_state = FIRE_PROOF
-	parts = 1
+	buildstackamount = 1
 
 	var/propelled = 0 // Check for fire-extinguisher-driven chairs
 
@@ -83,15 +83,15 @@
 /obj/structure/stool/bed/chair/wood
 	burn_state = FLAMMABLE
 	burntime = 20
-	parts = 3
-	is_wooden = 1
+	buildstackamount = 3
+	buildstacktype = /obj/item/stack/sheet/wood
 	// TODO:  Special ash subtype that looks like charred chair legs
 
 /obj/structure/stool/bed/chair/wood/attack_animal(mob/living/simple_animal/user) // Snowflakey, but limited current uses. Future refactor
 	if(user.environment_smash)
 		user.do_attack_animation(src)
 		visible_message("<span class='danger'>[user] smashes [src] apart!</span>")
-		new /obj/item/stack/sheet/wood(loc, 3)
+		new buildstacktype(loc, buildstackamount)
 		qdel(src)
 
 /obj/structure/stool/bed/chair/wood/narsie_act()
@@ -114,7 +114,7 @@
 	color = rgb(255,255,255)
 	burn_state = FLAMMABLE
 	burntime = 30
-	parts = 2
+	buildstackamount = 2
 	var/image/armrest = null
 
 /obj/structure/stool/bed/chair/comfy/New()
@@ -159,7 +159,7 @@
 /obj/structure/stool/bed/chair/office
 	anchored = 0
 	movable = 1
-	parts = 5
+	buildstackamount = 5
 
 /obj/structure/stool/bed/chair/office/Bump(atom/A)
 	..()
@@ -189,13 +189,13 @@
 
 /obj/structure/stool/bed/chair/barber
 	icon_state = "barber_chair"
-	parts = 1
+	buildstackamount = 1
 
 /obj/structure/stool/bed/chair/sofa
 	name = "old ratty sofa"
 	icon_state = "sofamiddle"
 	anchored = 1
-	parts = 1
+	buildstackamount = 1
 
 /obj/structure/stool/bed/chair/sofa/left
 	icon_state = "sofaend_left"

code/game/objects/structures/stool_bed_chair_nest/stools.dm

@@ -4,8 +4,8 @@
 	icon = 'icons/obj/objects.dmi'
 	icon_state = "stool"
 	anchored = 1.0
-	var parts = 1
-	var is_wooden = 0
+	var/buildstackamount = 1
+	var/buildstacktype = /obj/item/stack/sheet/metal
 
 /obj/structure/stool/ex_act(severity)
 	switch(severity)
@@ -14,28 +14,25 @@
 			return
 		if(2.0)
 			if(prob(70))
-				new /obj/item/stack/sheet/metal(loc)
+				new buildstacktype(loc, buildstackamount)
 				qdel(src)
 				return
 		if(3.0)
 			if(prob(50))
-				new /obj/item/stack/sheet/metal(loc)
+				new buildstacktype(loc, buildstackamount)
 				qdel(src)
 				return
 	return
 
 /obj/structure/stool/blob_act()
 	if(prob(75))
-		new /obj/item/stack/sheet/metal(loc)
+		new buildstacktype(loc, buildstackamount)
 		qdel(src)
 
 /obj/structure/stool/attackby(obj/item/weapon/W as obj, mob/user as mob, params)
 	if(istype(W, /obj/item/weapon/wrench))
 		playsound(loc, W.usesound, 50, 1)
-		if(is_wooden)
-			new /obj/item/stack/sheet/wood(loc, parts)
-		else
-			new /obj/item/stack/sheet/metal(loc, parts)
+		new buildstacktype(loc, buildstackamount)
 		qdel(src)
 
 /obj/structure/stool/MouseDrop(atom/over_object, src_location, over_location, src_control, over_control, params, skip_fucking_stool_shit = 0)