diff --git a/flybrains/meshes/JRCFIB2018Fraw_bbox.ply b/flybrains/meshes/JRCFIB2018Fraw_bbox.ply
new file mode 100644
index 0000000..745df12
Binary files /dev/null and b/flybrains/meshes/JRCFIB2018Fraw_bbox.ply differ
diff --git a/flybrains/templates.py b/flybrains/templates.py
index 173ac96..36790fc 100644
--- a/flybrains/templates.py
+++ b/flybrains/templates.py
@@ -577,9 +577,20 @@ def mesh(self):
             fp = os.path.join(mesh_filepath, f'{self.label}raw.ply')
             self._mesh = tm.load_mesh(fp)
             # Convert voxels to nanometers
-            self.mesh.vertices *= 8
+            self._mesh.vertices *= 8
         return self._mesh
 
+    @property
+    def bbox(self):
+        """On-demand loading of approximate bounding box."""
+        if not hasattr(self, '_mesh_bbox'):
+            # Load the raw mesh (voxels)
+            fp = os.path.join(mesh_filepath, f'{self.label}raw_bbox.ply')
+            self._mesh_bbox = tm.load_mesh(fp)
+            # Convert voxels to nanometers
+            self._mesh_bbox.vertices *= 8
+        return self._mesh_bbox
+
 JRCFIB2018F = _JRCFIB2018F(**template_meta['JRCFIB2018F'])
 
 
@@ -624,6 +635,14 @@ class _JRCFIB2018Fraw(FlyTemplateBrain):
     Jain, Viren; Plaza, Stephen M bioRxiv doi:10.1101/2020.01.21.911859.
 
     """
+    @property
+    def bbox(self):
+        """On-demand loading of approximate bounding box."""
+        if not hasattr(self, '_mesh_bbox'):
+            # Load the raw mesh (voxels)
+            fp = os.path.join(mesh_filepath, f'{self.label}_bbox.ply')
+            self._mesh_bbox = tm.load_mesh(fp)
+        return self._mesh_bbox
 
 JRCFIB2018Fraw = _JRCFIB2018Fraw(**template_meta['JRCFIB2018Fraw'])