diff --git a/homedecor/furniture.lua b/homedecor/furniture.lua
index 4346a014..61667ed6 100644
--- a/homedecor/furniture.lua
+++ b/homedecor/furniture.lua
@@ -348,9 +348,6 @@ homedecor.register("wardrobe_bottom", {
 	infotext = S("Wardrobe cabinet"),
 	inventory = {
 		size=24,
-		formspec="size[8,8]"..
-			"list[context;main;0,0;8,3;]"..
-			"list[current_player;main;0,4;8,4;]",
 	},
 })
 
diff --git a/homedecor/kitchen_cabinet.lua b/homedecor/kitchen_cabinet.lua
index 8aa90881..b2afaee8 100644
--- a/homedecor/kitchen_cabinet.lua
+++ b/homedecor/kitchen_cabinet.lua
@@ -29,9 +29,6 @@ for _, mat in ipairs(counter_materials) do
 		infotext=S("Kitchen Cabinet"),
 		inventory = {
 			size=24,
-			formspec="size[8,8]"..
-				"list[context;main;0,0;8,3;]"..
-				"list[current_player;main;0,4;8,4;]",
 		},
 	})
 end
@@ -59,9 +56,6 @@ homedecor.register("kitchen_cabinet_half", {
 	infotext=S("Kitchen Cabinet"),
 	inventory = {
 		size=12,
-		formspec="size[8,7]"..
-			"list[context;main;1,0;6,2;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
 
@@ -77,8 +71,5 @@ homedecor.register("kitchen_cabinet_with_sink", {
 	infotext=S("Under-sink cabinet"),
 	inventory = {
 		size=16,
-		formspec="size[8,7]"..
-			"list[context;main;0,0;8,2;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
diff --git a/homedecor/misc-bathroom.lua b/homedecor/misc-bathroom.lua
index 71a4bd46..5daf87df 100644
--- a/homedecor/misc-bathroom.lua
+++ b/homedecor/misc-bathroom.lua
@@ -90,9 +90,6 @@ homedecor.register("medicine_cabinet", {
 	infotext=S("Medicine cabinet"),
 	inventory = {
 		size=16,
-		formspec="size[8,7]"..
-			"list[context;main;1,0;6,1;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
 
diff --git a/homedecor/misc-nodes.lua b/homedecor/misc-nodes.lua
index 631214d9..e3e4ea48 100644
--- a/homedecor/misc-nodes.lua
+++ b/homedecor/misc-nodes.lua
@@ -328,9 +328,6 @@ homedecor.register("cardboard_box", {
 	infotext=S("Cardboard box"),
 	inventory = {
 		size=8,
-		formspec="size[8,6]"..
-			"list[current_name;main;2,0;4,1;]"..
-			"list[current_player;main;0,2;8,4;]",
 	},
 })
 
@@ -396,9 +393,6 @@ homedecor.register("filing_cabinet", {
 	infotext=S("Filing cabinet"),
 	inventory = {
 		size=16,
-		formspec="size[8,7]"..
-			"list[context;main;0,0;8,2;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
 
diff --git a/homedecor/nightstands.lua b/homedecor/nightstands.lua
index 853886c7..863056df 100644
--- a/homedecor/nightstands.lua
+++ b/homedecor/nightstands.lua
@@ -32,9 +32,6 @@ homedecor.register("nightstand_oak_one_drawer", {
 	infotext=S("One-drawer Nightstand"),
 	inventory = {
 		size=8,
-		formspec="size[8,6]"..
-			"list[context;main;0,0;8,1;]"..
-			"list[current_player;main;0,2;8,4;]",
 	},
 })
 
@@ -69,9 +66,6 @@ homedecor.register("nightstand_oak_two_drawers", {
 	infotext=S("Two-drawer Nightstand"),
 	inventory = {
 		size=16,
-		formspec="size[8,7]"..
-			"list[context;main;0,0;8,2;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
 
@@ -105,9 +99,6 @@ homedecor.register("nightstand_mahogany_one_drawer", {
 	infotext=S("One-drawer Nightstand"),
 	inventory = {
 		size=8,
-		formspec="size[8,6]"..
-			"list[context;main;0,0;8,1;]"..
-			"list[current_player;main;0,2;8,4;]",
 	},
 })
 
@@ -139,8 +130,5 @@ homedecor.register("nightstand_mahogany_two_drawers", {
 	infotext=S("Two-drawer Nightstand"),
 	inventory = {
 		size=16,
-		formspec="size[8,7]"..
-			"list[context;main;0,0;8,2;]"..
-			"list[current_player;main;0,3;8,4;]",
 	},
 })
diff --git a/homedecor/refrigerator.lua b/homedecor/refrigerator.lua
index d7543b16..c0e8789c 100644
--- a/homedecor/refrigerator.lua
+++ b/homedecor/refrigerator.lua
@@ -60,9 +60,6 @@ homedecor.register("refrigerator_steel_bottom", {
 	inventory = {
 		size=50,
 		lockable=true,
-		formspec="size[10,10]"..
-			"list[context;main;0,0;10,5;]"..
-			"list[current_player;main;1,6;8,4;]",
 	},
 })
 
@@ -108,9 +105,7 @@ homedecor.register("refrigerator_white_bottom", {
 	infotext=S("Refrigerator"),
 	inventory = {
 		size=50,
-		formspec="size[10,10]"..
-			"list[context;main;0,0;10,5;]"..
-			"list[current_player;main;1,6;8,4;]",
+		lockable=true
 	},
 })
 
diff --git a/homedecor/registration_handler.lua b/homedecor/registration_handler.lua
index 366a2a9f..a66561cb 100644
--- a/homedecor/registration_handler.lua
+++ b/homedecor/registration_handler.lua
@@ -7,14 +7,39 @@ local default_can_dig = function(pos,player)
 end
 
 local default_inventory_size = 32
-local default_inventory_formspec = "size[8,9]"..
-	default.gui_bg..
-	default.gui_bg_img..
-	default.gui_slots..
-	"list[current_name;main;0,0.3;8,4;]"..
+local default_inventory_formspecs = {
+	["8"]="size[8,6]"..
+	"list[context;main;0,0;8,1;]"..
+	"list[current_player;main;0,2;8,4;]",
+
+	["12"]="size[8,7]"..
+	"list[context;main;0,0;8,2;]"..
+	"list[current_player;main;0,3;8,4;]",
+
+	["16"]="size[8,7]"..
+	"list[context;main;0,0;8,2;]"..
+	"list[current_player;main;0,3;8,4;]",
+
+	["24"]="size[8,8]"..
+	"list[context;main;0,0;8,3;]"..
+	"list[current_player;main;0,4;8,4;]",
+
+	["32"]="size[8,9]".. default.gui_bg .. default.gui_bg_img .. default.gui_slots ..
+	"list[context;main;0,0.3;8,4;]"..
 	"list[current_player;main;0,4.85;8,1;]"..
 	"list[current_player;main;0,6.08;8,3;8]"..
-	default.get_hotbar_bg(0,4.85)
+	default.get_hotbar_bg(0,4.85),
+
+	["50"]="size[10,10]"..
+	"list[context;main;0,0;10,5;]"..
+	"list[current_player;main;1,6;8,4;]",
+}
+
+local function get_formspec_by_size(size)
+	--TODO heuristic to use the "next best size"
+	local formspec = default_inventory_formspecs[tostring(size)]
+	return formspec or default_inventory_formspecs
+end
 
 --wrapper around minetest.register_node that sets sane defaults and interprets some specialized settings
 function homedecor.register(name, def)
@@ -37,17 +62,14 @@ function homedecor.register(name, def)
 	def.inventory = nil
 
 	if inventory then
-		assert((inventory.formspec == nil) == (inventory.size == nil),
-			"inventory.formspec and inventory.size either have both to be set or both be left nil" )
-
 		def.on_construct = def.on_construct or function(pos)
 			local meta = minetest.get_meta(pos)
 			if infotext then
 				meta:set_string("infotext", infotext)
 			end
-
-			meta:set_string("formspec", inventory.formspec or default_inventory_formspec)
-			meta:get_inventory():set_size("main", inventory.size or default_inventory_size)
+			local size = inventory.size or default_inventory_size
+			meta:get_inventory():set_size("main", size)
+			meta:set_string("formspec", inventory.formspec or get_formspec_by_size(size))
 		end
 
 		def.can_dig = def.can_dig or default_can_dig