diff --git a/scripts/xyz_grid.py b/scripts/xyz_grid.py
index b23fd4770..81c7abe95 100644
--- a/scripts/xyz_grid.py
+++ b/scripts/xyz_grid.py
@@ -95,6 +95,17 @@ def confirm_checkpoints_or_none(p, xs):
             raise RuntimeError(f"Unknown checkpoint: {x}")
 
 
+def confirm_range(min_val, max_val, axis_label):
+    """Generates a AxisOption.confirm() function that checks all values are within the specified range."""
+
+    def confirm_range_fun(p, xs):
+        for x in xs:
+            if not (max_val >= x >= min_val):
+                raise ValueError(f'{axis_label} value "{x}" out of range [{min_val}, {max_val}]')
+
+    return confirm_range_fun
+
+
 def apply_clip_skip(p, x, xs):
     opts.data["CLIP_stop_at_last_layers"] = x