diff --git a/src/papermodels/datatypes/element.py b/src/papermodels/datatypes/element.py
index b7d2041..4503ab6 100644
--- a/src/papermodels/datatypes/element.py
+++ b/src/papermodels/datatypes/element.py
@@ -17,6 +17,7 @@
 import tomli_w
 import json
 
+
 Geometry = Union[LineString, Polygon]
 
 ELEMENT_ATTRS = {
@@ -277,6 +278,9 @@ def get_collector_extents(self, relative: bool = True) -> dict[str, tuple]:
             for idx, poly_support_geom in enumerate(support_geoms):
                 clean_support_geom = support_geoms[idx]
                 cleaned_supports_map.update({clean_support_geom: poly_support_geom})
+                assert all(
+                    [self.geometry.intersects(support) for support in support_geoms]
+                )
                 try:
                     ordered_support_geoms = geom_ops.sort_supports(
                         self.geometry, support_geoms
diff --git a/src/papermodels/datatypes/joist_models.py b/src/papermodels/datatypes/joist_models.py
index 27c87e5..bf1a613 100644
--- a/src/papermodels/datatypes/joist_models.py
+++ b/src/papermodels/datatypes/joist_models.py
@@ -695,6 +695,7 @@ def generate_joist_geom(self, index: int):
             #     joist_geom = LineString([end_a, end_b])
         if joist_geom.length <= self._cantilever_tolerance:
             return None
+
         return joist_geom
 
     def get_extent_edge(self, edge: str = "start"):