diff --git a/floorplan/v2/Floorplan.h b/floorplan/v2/Floorplan.h
index 84903eb..4e1f327 100644
--- a/floorplan/v2/Floorplan.h
+++ b/floorplan/v2/Floorplan.h
@@ -164,6 +164,7 @@ namespace Floorplan {
 		WOOD,
 		DRYWALL,
 		GLASS,
+		METAL,
 		_END,
 	};