diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index af7e17ad05..faa6f56843 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -2276,7 +2276,7 @@
   //===========================================================================
 
   #define MESH_INSET 10          // Set Mesh bounds as an inset region of the bed
-  #define GRID_MAX_POINTS_X 3    // Don't use more than 7 points per axis, implementation limited.
+  #define GRID_MAX_POINTS_X 3
   #define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X
 
   //#define MESH_G28_REST_ORIGIN // After homing all axes ('G28' or 'G28 XYZ') rest Z at Z_MIN_POS
diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h
index fa06bac9f5..c40a2f7632 100644
--- a/Marlin/src/inc/SanityCheck.h
+++ b/Marlin/src/inc/SanityCheck.h
@@ -1649,8 +1649,8 @@ static_assert(NUM_SERVOS <= NUM_SERVO_PLUGS, "NUM_SERVOS (or some servo index) i
 #elif ENABLED(MESH_BED_LEVELING)
   #if ENABLED(DELTA)
     #error "MESH_BED_LEVELING is not compatible with DELTA printers."
-  #elif (GRID_MAX_POINTS_X) > 9 || (GRID_MAX_POINTS_Y) > 9
-    #error "GRID_MAX_POINTS_X and GRID_MAX_POINTS_Y must be less than 10 for MBL."
+  #elif !WITHIN(GRID_MAX_POINTS_X, 2, 255) || !WITHIN(GRID_MAX_POINTS_Y, 2, 255)
+    #error "GRID_MAX_POINTS_[XY] must be between 2 and 255 for MESH_BED_LEVELING."
   #endif
 #endif