diff --git a/SpeckleLib/SpeckleLib17.vcxproj b/SpeckleLib/SpeckleLib17.vcxproj
index 44cfc1a..69e58a9 100644
--- a/SpeckleLib/SpeckleLib17.vcxproj
+++ b/SpeckleLib/SpeckleLib17.vcxproj
@@ -140,8 +140,11 @@
     <ClInclude Include="Speckle\Record\Element\Interface\Assembly\Path.h" />
     <ClInclude Include="Speckle\Record\Element\Interface\Assembly\Segment.h" />
     <ClInclude Include="Speckle\Record\Element\Interface\Part.h" />
+    <ClInclude Include="Speckle\Record\Element\Interface\Risers.h" />
     <ClInclude Include="Speckle\Record\Element\Interface\SegmentedBeam.h" />
     <ClInclude Include="Speckle\Record\Element\Interface\SegmentedColumn.h" />
+    <ClInclude Include="Speckle\Record\Element\Interface\StructuredStair.h" />
+    <ClInclude Include="Speckle\Record\Element\Interface\Treads.h" />
     <ClInclude Include="Speckle\Record\Element\Memo.h" />
     <ClInclude Include="Speckle\Record\Element\MeshElem.h" />
     <ClInclude Include="Speckle\Record\Element\ModelElement.h" />
@@ -154,6 +157,10 @@
     <ClInclude Include="Speckle\Record\Element\Setting\TypeSetting.h" />
     <ClInclude Include="Speckle\Record\Element\Shell.h" />
     <ClInclude Include="Speckle\Record\Element\Slab.h" />
+    <ClInclude Include="Speckle\Record\Element\Stair.h" />
+    <ClInclude Include="Speckle\Record\Element\StairRiser.h" />
+    <ClInclude Include="Speckle\Record\Element\StairStructure.h" />
+    <ClInclude Include="Speckle\Record\Element\StairTread.h" />
     <ClInclude Include="Speckle\Record\Element\Wall.h" />
     <ClInclude Include="Speckle\Record\Property\Group.h" />
     <ClInclude Include="Speckle\Record\Property\Propertied.h" />
@@ -239,8 +246,11 @@
     <ClCompile Include="Speckle\Record\Element\Interface\Assembly\Path.cpp" />
     <ClCompile Include="Speckle\Record\Element\Interface\Assembly\Segment.cpp" />
     <ClCompile Include="Speckle\Record\Element\Interface\Part.cpp" />
+    <ClCompile Include="Speckle\Record\Element\Interface\Risers.cpp" />
     <ClCompile Include="Speckle\Record\Element\Interface\SegmentedBeam.cpp" />
     <ClCompile Include="Speckle\Record\Element\Interface\SegmentedColumn.cpp" />
+    <ClCompile Include="Speckle\Record\Element\Interface\StructuredStair.cpp" />
+    <ClCompile Include="Speckle\Record\Element\Interface\Treads.cpp" />
     <ClCompile Include="Speckle\Record\Element\Memo.cpp" />
     <ClCompile Include="Speckle\Record\Element\MeshElem.cpp" />
     <ClCompile Include="Speckle\Record\Element\ModelElement.cpp" />
@@ -252,6 +262,10 @@
     <ClCompile Include="Speckle\Record\Element\Setting\TypeSetting.cpp" />
     <ClCompile Include="Speckle\Record\Element\Shell.cpp" />
     <ClCompile Include="Speckle\Record\Element\Slab.cpp" />
+    <ClCompile Include="Speckle\Record\Element\Stair.cpp" />
+    <ClCompile Include="Speckle\Record\Element\StairRiser.cpp" />
+    <ClCompile Include="Speckle\Record\Element\StairStructure.cpp" />
+    <ClCompile Include="Speckle\Record\Element\StairTread.cpp" />
     <ClCompile Include="Speckle\Record\Element\Wall.cpp" />
     <ClCompile Include="Speckle\Record\Property\Group.cpp" />
     <ClCompile Include="Speckle\Record\Property\Propertied.cpp" />
diff --git a/SpeckleLib/SpeckleLib17.vcxproj.filters b/SpeckleLib/SpeckleLib17.vcxproj.filters
index a073cc6..43351db 100644
--- a/SpeckleLib/SpeckleLib17.vcxproj.filters
+++ b/SpeckleLib/SpeckleLib17.vcxproj.filters
@@ -481,6 +481,27 @@
     <ClInclude Include="Speckle\Utility\UserCancel.h">
       <Filter>Speckle\Utility</Filter>
     </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\Stair.h">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\StairRiser.h">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\StairStructure.h">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\StairTread.h">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\Interface\Risers.h">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\Interface\StructuredStair.h">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClInclude>
+    <ClInclude Include="Speckle\Record\Element\Interface\Treads.h">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Speckle\Environment\Addon.cpp">
@@ -741,6 +762,27 @@
     <ClCompile Include="Speckle\Serialise\Collection\ConversionReporter.cpp">
       <Filter>Speckle\Serialise\Collection</Filter>
     </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\Stair.cpp">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\StairRiser.cpp">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\StairStructure.cpp">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\StairTread.cpp">
+      <Filter>Speckle\Record\Element</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\Interface\Risers.cpp">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\Interface\StructuredStair.cpp">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClCompile>
+    <ClCompile Include="Speckle\Record\Element\Interface\Treads.cpp">
+      <Filter>Speckle\Record\Element\Interface</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Text Include="Speckle\CMakeLists.txt">