diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 03276ae237..ae5462a73e 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -1694,8 +1694,8 @@
 // @section geometry
 
 // The size of the printable area
-#define X_BED_SIZE 200
-#define Y_BED_SIZE 200
+#define X_BED_SIZE 840
+#define Y_BED_SIZE 900
 
 // Travel limits (linear=mm, rotational=°) after homing, corresponding to endstop positions.
 #define X_MIN_POS 0