diff --git a/src/blenderbim/blenderbim/bim/module/model/opening.py b/src/blenderbim/blenderbim/bim/module/model/opening.py
index f1116aa186..da6cfeced3 100644
--- a/src/blenderbim/blenderbim/bim/module/model/opening.py
+++ b/src/blenderbim/blenderbim/bim/module/model/opening.py
@@ -75,7 +75,7 @@ class AddFilledOpening(bpy.types.Operator, tool.Ifc.Operator):
             if container:
                 container_obj = tool.Ifc.get_object(container)
                 if container_obj:
-                    new_matrix[2][3] = container_obj.matrix_world[2][3] + props.rl
+                    new_matrix[2][3] = container_obj.matrix_world[2][3] + props.rl2
         filling_obj.matrix_world = new_matrix
         bpy.context.view_layer.update()
 
diff --git a/src/blenderbim/blenderbim/bim/module/model/prop.py b/src/blenderbim/blenderbim/bim/module/model/prop.py
index 0e726c5b0a..1b073550e7 100644
--- a/src/blenderbim/blenderbim/bim/module/model/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/model/prop.py
@@ -228,7 +228,8 @@ class BIMModelProperties(PropertyGroup):
     x: bpy.props.FloatProperty(name="X", default=0.5)
     y: bpy.props.FloatProperty(name="Y", default=0.5)
     z: bpy.props.FloatProperty(name="Z", default=0.5)
-    rl: bpy.props.FloatProperty(name="RL", default=1)
+    rl1: bpy.props.FloatProperty(name="RL", default=1) # Used for things like walls, doors, flooring, skirting, etc
+    rl2: bpy.props.FloatProperty(name="RL", default=1) # Used for things like windows, other hosted furniture
     x_angle: bpy.props.FloatProperty(name="X Angle", default=0)
     type_page: bpy.props.IntProperty(name="Type Page", default=1, update=update_type_page)
     type_template: bpy.props.EnumProperty(
diff --git a/src/blenderbim/blenderbim/bim/module/model/wall.py b/src/blenderbim/blenderbim/bim/module/model/wall.py
index 72d5f982f6..6cb50be29d 100644
--- a/src/blenderbim/blenderbim/bim/module/model/wall.py
+++ b/src/blenderbim/blenderbim/bim/module/model/wall.py
@@ -561,6 +561,7 @@ class DumbWallGenerator:
         return self.create_wall(link_to_scene)
 
     def create_wall(self, link_to_scene):
+        props = bpy.context.scene.BIMModelProperties
         ifc_class = self.get_relating_type_class(self.relating_type)
         mesh = bpy.data.meshes.new("Dummy")
         obj = bpy.data.objects.new(tool.Model.generate_occurrence_name(self.relating_type, ifc_class), mesh)
@@ -568,7 +569,7 @@ class DumbWallGenerator:
             matrix_world = Matrix.Rotation(self.rotation, 4, "Z")
             matrix_world.col[3] = self.location.to_4d()
             if self.collection_obj and self.collection_obj.BIMObjectProperties.ifc_definition_id:
-                matrix_world[2][3] = self.collection_obj.location[2]
+                matrix_world[2][3] = self.collection_obj.location[2] + props.rl1
             obj.matrix_world = matrix_world
             bpy.context.view_layer.update()
             self.collection.objects.link(obj)
diff --git a/src/blenderbim/blenderbim/bim/module/model/workspace.py b/src/blenderbim/blenderbim/bim/module/model/workspace.py
index c0d6042ec8..9d89415253 100644
--- a/src/blenderbim/blenderbim/bim/module/model/workspace.py
+++ b/src/blenderbim/blenderbim/bim/module/model/workspace.py
@@ -98,6 +98,9 @@ class BimToolUI:
         if not AuthoringData.data["relating_types_ids"]:
             return
         if cls.props.ifc_class == "IfcWallType":
+            row = cls.layout.row(align=True)
+            row.prop(data=cls.props, property="rl1", text="RL")
+
             row = cls.layout.row(align=True)
             row.prop(data=cls.props, property="extrusion_depth", text="Height")
 
@@ -113,9 +116,12 @@ class BimToolUI:
             row = cls.layout.row(align=True)
             label = "Height" if cls.props.ifc_class == "IfcColumn" else "Length"
             row.prop(data=cls.props, property="extrusion_depth", text=label)
+        elif cls.props.ifc_class in ("IfcDoorType", "IfcDoorStyle"):
+            row = cls.layout.row(align=True)
+            row.prop(data=cls.props, property="rl1", text="RL")
         elif cls.props.ifc_class in ("IfcWindowType", "IfcWindowStyle", "IfcDoorType", "IfcDoorStyle"):
             row = cls.layout.row(align=True)
-            row.prop(data=cls.props, property="rl", text="RL")
+            row.prop(data=cls.props, property="rl2", text="RL")
 
     @classmethod
     def draw_edit_object_interface(cls, context):
diff --git a/src/blenderbim/blenderbim/tool/project.py b/src/blenderbim/blenderbim/tool/project.py
index f0418d58e3..585da491be 100644
--- a/src/blenderbim/blenderbim/tool/project.py
+++ b/src/blenderbim/blenderbim/tool/project.py
@@ -135,7 +135,8 @@ class Project(blenderbim.core.tool.Project):
         unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
         props.extrusion_depth = 3 / unit_scale
         props.length = 1 / unit_scale
-        props.rl = 1 / unit_scale
+        props.rl1 = 0
+        props.rl2 = 1 / unit_scale
         props.x = 0.5 / unit_scale
         props.y = 0.5 / unit_scale
         props.z = 0.5 / unit_scale
diff --git a/src/blenderbim/test/tool/test_project.py b/src/blenderbim/test/tool/test_project.py
index 8398693364..011fbfd24c 100644
--- a/src/blenderbim/test/tool/test_project.py
+++ b/src/blenderbim/test/tool/test_project.py
@@ -129,7 +129,8 @@ class TestSetDefaultModelingDimensions(NewFile):
         props = bpy.context.scene.BIMModelProperties
         assert props.extrusion_depth == 3000
         assert props.length == 1000
-        assert props.rl == 1000
+        assert props.rl1 == 0
+        assert props.rl2 == 1000
         assert props.x == 500
         assert props.y == 500
         assert props.z == 500