diff --git a/openfpga/test_vpr_arch/k6_frac_N10_adder_chain_mem16K_40nm.xml b/openfpga/test_vpr_arch/k6_frac_N10_adder_chain_mem16K_40nm.xml
index 850eb5450..87e6ff937 100644
--- a/openfpga/test_vpr_arch/k6_frac_N10_adder_chain_mem16K_40nm.xml
+++ b/openfpga/test_vpr_arch/k6_frac_N10_adder_chain_mem16K_40nm.xml
@@ -193,7 +193,7 @@
   </tiles>
   <!-- ODIN II specific config ends -->
   <!-- Physical descriptions begin -->
-  <layout tileable="false">
+  <layout tileable="tileable">
     <!--auto_layout aspect_ratio="1.0"-->
     <fixed_layout name="4x4" width="5" height="4">
       <!--Perimeter of 'io' blocks with 'EMPTY' blocks at corners-->
diff --git a/vpr/src/tileable_rr_graph/tileable_rr_graph_node_builder.cpp b/vpr/src/tileable_rr_graph/tileable_rr_graph_node_builder.cpp
index 7191bc523..da77d536e 100644
--- a/vpr/src/tileable_rr_graph/tileable_rr_graph_node_builder.cpp
+++ b/vpr/src/tileable_rr_graph/tileable_rr_graph_node_builder.cpp
@@ -492,8 +492,8 @@ void load_one_grid_source_nodes_basic_info(RRGraph& rr_graph,
     /* node bounding box */
     rr_graph.set_node_bounding_box(node, vtr::Rect<short>(grid_coordinate.x(),
                                                           grid_coordinate.y(),
-                                                          grid_coordinate.x(),
-                                                          grid_coordinate.y()));
+                                                          grid_coordinate.x() + cur_grid.type->width - 1,
+                                                          grid_coordinate.y() + cur_grid.type->height - 1));
     rr_graph.set_node_class_num(node, iclass);  
 
     rr_graph.set_node_capacity(node, 1);
@@ -543,8 +543,8 @@ void load_one_grid_sink_nodes_basic_info(RRGraph& rr_graph,
     /* node bounding box */
     rr_graph.set_node_bounding_box(node, vtr::Rect<short>(grid_coordinate.x(),
                                                           grid_coordinate.y(),
-                                                          grid_coordinate.x(),
-                                                          grid_coordinate.y()));
+                                                          grid_coordinate.x() + cur_grid.type->width - 1,
+                                                          grid_coordinate.y() + cur_grid.type->height - 1));
     rr_graph.set_node_class_num(node, iclass);  
 
     rr_graph.set_node_capacity(node, 1);