diff --git a/unilabos/resources/warehouse.py b/unilabos/resources/warehouse.py
index 67facde7..c665b7fa 100644
--- a/unilabos/resources/warehouse.py
+++ b/unilabos/resources/warehouse.py
@@ -74,6 +74,7 @@ class WareHouse(ItemizedCarrier):
         num_items_x: int,
         num_items_y: int,
         num_items_z: int,
+        layout: str = "x-y",
         sites: Optional[Dict[Union[int, str], Optional[ResourcePLR]]] = None,
         category: str = "warehouse",
         model: Optional[str] = None,
@@ -89,6 +90,7 @@ class WareHouse(ItemizedCarrier):
             num_items_x=num_items_x,
             num_items_y=num_items_y,
             num_items_z=num_items_z,
+            layout=layout,
             sites=sites,
             category=category,
             model=model,