diff --git a/examples/Grasshopper/CT_NEW_UI_Example.3dm b/examples/Grasshopper/CT_NEW_UI_Example.3dm
index d81623253..a228176a9 100644
Binary files a/examples/Grasshopper/CT_NEW_UI_Example.3dm and b/examples/Grasshopper/CT_NEW_UI_Example.3dm differ
diff --git a/examples/Grasshopper/CT_NEW_UI_Example.gh b/examples/Grasshopper/CT_NEW_UI_Example.gh
index 1a843c427..cce5a4e25 100644
Binary files a/examples/Grasshopper/CT_NEW_UI_Example.gh and b/examples/Grasshopper/CT_NEW_UI_Example.gh differ
diff --git a/src/compas_timber/fabrication/btlx.py b/src/compas_timber/fabrication/btlx.py
index baaf93eb0..01a57cc6d 100644
--- a/src/compas_timber/fabrication/btlx.py
+++ b/src/compas_timber/fabrication/btlx.py
@@ -158,8 +158,8 @@ def __init__(self, beam):
         self.beam = beam
         self.key = beam.key
         self.length = beam.length
-        self.width = beam.width
-        self.height = beam.height
+        self.width = beam.height
+        self.height = beam.width
         self.frame = Frame(
             self.beam.long_edges[2].closest_point(self.beam.blank_frame.point),
             beam.frame.xaxis,