diff --git a/src/bonsai/bonsai/bim/module/model/opening.py b/src/bonsai/bonsai/bim/module/model/opening.py
index 8a1155e5d4..a8a57c76f4 100644
--- a/src/bonsai/bonsai/bim/module/model/opening.py
+++ b/src/bonsai/bonsai/bim/module/model/opening.py
@@ -281,8 +281,15 @@ class FilledOpeningGenerator:
                     new_matrix.translation.x = point_on_base_axis.x
                     new_matrix.translation.y = point_on_base_axis.y
                 else:
-                    new_matrix.translation.x = point_on_side_axis.x
-                    new_matrix.translation.y = point_on_side_axis.y
+                    filling_min_x = min([p[0] for p in filling_obj.bound_box])
+                    filling_max_x = max([p[0] for p in filling_obj.bound_box])
+
+                    # offset that results in the same x extents when the model is rotated 180 degrees
+                    filling_opposite_x = filling_max_x + filling_min_x
+
+                    offset_dir = voided_obj.matrix_world @ Vector((filling_opposite_x, 0, 0, 0))
+                    new_matrix.translation.x = point_on_side_axis.x + offset_dir.x
+                    new_matrix.translation.y = point_on_side_axis.y + offset_dir.y
                     new_matrix = new_matrix @ Euler((0, 0, radians(180.0))).to_matrix().to_4x4()
 
                 if should_set_z_level: