diff --git a/backend/src/db.js b/backend/src/db.js
index 1ed30a0..1210391 100644
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -40,6 +40,27 @@ db.exec(`
   );
 
   -- Tool: 3D-Kalkulator
+  CREATE TABLE IF NOT EXISTS orders (
+    id           INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id      INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    name         TEXT NOT NULL,
+    bemerkung    TEXT NOT NULL DEFAULT '',
+    status       TEXT NOT NULL DEFAULT 'warteliste',
+    custom_price REAL,
+    created_at   DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at   DATETIME DEFAULT CURRENT_TIMESTAMP
+  );
+  CREATE TABLE IF NOT EXISTS order_items (
+    id                 INTEGER PRIMARY KEY AUTOINCREMENT,
+    order_id           INTEGER NOT NULL REFERENCES orders(id) ON DELETE CASCADE,
+    calculation_id     INTEGER REFERENCES calculations(id) ON DELETE SET NULL,
+    calc_name          TEXT NOT NULL,
+    preis_freundschaft REAL NOT NULL,
+    preis_normal       REAL NOT NULL,
+    preis_auftrag      REAL NOT NULL,
+    stueckzahl         INTEGER NOT NULL DEFAULT 1
+  );
+
   CREATE TABLE IF NOT EXISTS calculations (
     id                      INTEGER PRIMARY KEY AUTOINCREMENT,
     user_id                 INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,