diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 8e8d359430f..4e2ba94e308 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -247,7 +247,13 @@ frappe.ui.form.on("Work Order", {
 	},
 
 	toggle_items_editable(frm) {
-		frm.toggle_enable("required_items", frm.doc.__onload?.allow_editing_items === 1 ? 1 : 0);
+		if (!frm.doc.__onload?.allow_editing_items) {
+			frm.set_df_property("required_items", "cannot_delete_rows", true);
+			frm.set_df_property("required_items", "cannot_add_rows", true);
+			frm.fields_dict["required_items"].grid.update_docfield_property("item_code", "read_only", 1);
+			frm.fields_dict["required_items"].grid.update_docfield_property("required_qty", "read_only", 1);
+			frm.fields_dict["required_items"].grid.refresh();
+		}
 	},
 
 	add_custom_button_to_return_components: function (frm) {
diff --git a/erpnext/manufacturing/doctype/work_order_item/work_order_item.json b/erpnext/manufacturing/doctype/work_order_item/work_order_item.json
index 580168180a7..98ee0a63d53 100644
--- a/erpnext/manufacturing/doctype/work_order_item/work_order_item.json
+++ b/erpnext/manufacturing/doctype/work_order_item/work_order_item.json
@@ -151,7 +151,7 @@
  ],
  "istable": 1,
  "links": [],
- "modified": "2024-11-19 15:48:16.823384",
+ "modified": "2025-12-02 11:16:05.081613",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Work Order Item",