diff --git a/.gitignore b/.gitignore
index 22e1a237f..50c980cb3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -354,3 +354,4 @@ dist/*
 /IntegrationTests/obj
 
 /GhSA/bin/x64/Release
+/UnitTestGsaGH/bin/x64/Debug
diff --git a/GsaGH/Components/0_Model/GwaModel.cs b/GsaGH/Components/0_Model/GwaModel.cs
new file mode 100644
index 000000000..ff8bf1c91
--- /dev/null
+++ b/GsaGH/Components/0_Model/GwaModel.cs
@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.IO;
+using Grasshopper.Kernel;
+using GsaAPI;
+using GsaGH.Parameters;
+
+
+namespace GsaGH.Components
+{
+  /// <summary>
+  /// Component to create a GSA model from GWA string
+  /// </summary>
+  public class GwaModel : GH_OasysComponent
+  {
+    #region Name and Ribbon Layout
+    public override Guid ComponentGuid => new Guid("6f701c53-1531-45ef-9842-9356da59b590");
+    public override GH_Exposure Exposure => GH_Exposure.tertiary | GH_Exposure.obscure;
+    protected override System.Drawing.Bitmap Icon => GsaGH.Properties.Resources.GwaModel;
+    public GwaModel()
+       : base("Create GWA Model", "GWA", "Create a model from a GWA string.",
+            Ribbon.CategoryName.Name(),
+            Ribbon.SubCategoryName.Cat0())
+    { this.Hidden = true; } // sets the initial state of the component to hidden
+    #endregion
+
+    #region Input and output
+    protected override void RegisterInputParams(GH_InputParamManager pManager)
+    {
+      pManager.AddTextParameter("GWA string", "GWA", "GWA string from GSA. Right-click on any data, and select copy all. Paste into notepad to check the data. \r\nThis input takes a a list of text strings that will automatically be joined. Construct a tree structure if you want to create multiple GSA files. \r\nThe syntax of the command is based on GWA syntax and the units follow the GWA unit syntax; –\r\nrefer to the “GSA Keywords” document for details", GH_ParamAccess.list);
+    }
+
+    protected override void RegisterOutputParams(GH_OutputParamManager pManager)
+    {
+      pManager.AddParameter(new GsaModelParameter());
+    }
+    #endregion
+
+    protected override void SolveInstance(IGH_DataAccess DA)
+    {
+      Interop.Gsa_10_1.ComAuto m = new Interop.Gsa_10_1.ComAuto();
+      m.NewFile();
+      string gwa = "";
+      List<string> strings = new List<string>();
+      if (DA.GetDataList(0, strings))
+        foreach (string s in strings)
+          gwa += s + "\n";
+      
+      m.GwaCommand(gwa);
+      string temp = Path.GetTempPath() + Guid.NewGuid().ToString() + ".gwb";
+      m.SaveAs(temp);
+      GsaModel gsaGH = new GsaModel();
+      gsaGH.Model.Open(temp);
+      DA.SetData(0, gsaGH);
+    }
+  }
+}
diff --git a/GsaGH/GsaGH.csproj b/GsaGH/GsaGH.csproj
index b1269b765..44c05819b 100644
--- a/GsaGH/GsaGH.csproj
+++ b/GsaGH/GsaGH.csproj
@@ -58,6 +58,10 @@
       <HintPath>..\..\..\..\..\..\Program Files\Oasys\GSA 10.1\GsaAPI.dll</HintPath>
       <Private>False</Private>
     </Reference>
+    <Reference Include="Interop.Gsa_10_1">
+      <HintPath>..\..\..\..\..\..\Program Files\Oasys\GSA 10.1\Interop.Gsa_10_1.dll</HintPath>
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <HintPath>..\packages\Newtonsoft.Json.13.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
     </Reference>
@@ -99,6 +103,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Components\0_Model\GetAnalysis.cs" />
+    <Compile Include="Components\0_Model\GwaModel.cs" />
     <Compile Include="Components\1_Properties\CreateSectionModifier.cs" />
     <Compile Include="Components\1_Properties\CreateProp3d.cs" />
     <Compile Include="Components\1_Properties\EditSectionModifier.cs" />
@@ -641,6 +646,9 @@
   <ItemGroup>
     <None Include="Properties\Icons\TotalLoadAndReaction.png" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="Properties\Icons\GwaModel.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/GsaGH/Parameters/GsaMaterial.cs b/GsaGH/Parameters/GsaMaterial.cs
index d63f8e94d..253baad65 100644
--- a/GsaGH/Parameters/GsaMaterial.cs
+++ b/GsaGH/Parameters/GsaMaterial.cs
@@ -122,32 +122,44 @@ public GsaMaterial(int material_id)
 
     internal GsaMaterial(GsaSection section, AnalysisMaterial analysisMaterial = null)
     {
-      if (section == null) { return; }
-      if (section.API_Section == null) { return; }
-      if (analysisMaterial == null && section.Material.AnalysisMaterial != null)
-        analysisMaterial = section.Material.AnalysisMaterial;
-      else if (section.API_Section.MaterialAnalysisProperty > 0 && section.Material != null && analysisMaterial == null)
-        analysisMaterial = section.Material.AnalysisMaterial;
+      if (section == null || section.API_Section == null)
+        return;
+      if (section.Material != null)
+      {
+        if (analysisMaterial == null && section.Material.AnalysisMaterial != null)
+          analysisMaterial = section.Material.AnalysisMaterial;
+        else if (section.API_Section.MaterialAnalysisProperty > 0 && section.Material != null && analysisMaterial == null)
+          analysisMaterial = section.Material.AnalysisMaterial;
+      }
+        
       CreateFromAPI(section.API_Section.MaterialType, section.API_Section.MaterialAnalysisProperty, section.API_Section.MaterialGradeProperty, analysisMaterial);
     }
     internal GsaMaterial(GsaProp2d prop, AnalysisMaterial analysisMaterial = null)
     {
-      if (prop == null) { return; }
-      if (prop.API_Prop2d == null) { return; }
-      if (analysisMaterial == null && prop.Material.AnalysisMaterial != null)
-        analysisMaterial = prop.Material.AnalysisMaterial;
-      else if (prop.API_Prop2d.MaterialAnalysisProperty > 0 && prop.Material != null && analysisMaterial == null)
-        analysisMaterial = prop.Material.AnalysisMaterial;
+      if (prop == null || prop.API_Prop2d == null)
+        return;
+      if (prop.Material != null)
+      {
+        if (analysisMaterial == null && prop.Material.AnalysisMaterial != null)
+          analysisMaterial = prop.Material.AnalysisMaterial;
+        else if (prop.API_Prop2d.MaterialAnalysisProperty > 0 && analysisMaterial == null)
+          analysisMaterial = prop.Material.AnalysisMaterial;
+      }
+      
       CreateFromAPI(prop.API_Prop2d.MaterialType, prop.API_Prop2d.MaterialAnalysisProperty, prop.API_Prop2d.MaterialGradeProperty, analysisMaterial);
     }
     internal GsaMaterial(GsaProp3d prop, AnalysisMaterial analysisMaterial = null)
     {
-      if (prop == null) { return; }
-      if (prop.API_Prop3d == null) { return; }
-      if (analysisMaterial == null && prop.Material.AnalysisMaterial != null)
-        analysisMaterial = prop.Material.AnalysisMaterial;
-      else if (prop.API_Prop3d.MaterialAnalysisProperty > 0 && prop.Material != null && analysisMaterial == null)
-        analysisMaterial = prop.Material.AnalysisMaterial;
+      if (prop == null || prop.API_Prop3d == null)
+        return;
+
+      if (prop.Material != null)
+      {
+        if (analysisMaterial == null && prop.Material.AnalysisMaterial != null)
+          analysisMaterial = prop.Material.AnalysisMaterial;
+        else if (prop.API_Prop3d.MaterialAnalysisProperty > 0 && analysisMaterial == null)
+          analysisMaterial = prop.Material.AnalysisMaterial;
+      }
       CreateFromAPI(prop.API_Prop3d.MaterialType, prop.API_Prop3d.MaterialAnalysisProperty, prop.API_Prop3d.MaterialGradeProperty, analysisMaterial);
     }
     private void CreateFromAPI(MaterialType materialType, int analysisProp, int gradeProp, AnalysisMaterial analysisMaterial)
diff --git a/GsaGH/Properties/Icons/GwaModel.png b/GsaGH/Properties/Icons/GwaModel.png
new file mode 100644
index 000000000..b430c461c
Binary files /dev/null and b/GsaGH/Properties/Icons/GwaModel.png differ
diff --git a/GsaGH/Properties/Resources.Designer.cs b/GsaGH/Properties/Resources.Designer.cs
index 0343d25e0..d75543cfb 100644
--- a/GsaGH/Properties/Resources.Designer.cs
+++ b/GsaGH/Properties/Resources.Designer.cs
@@ -800,6 +800,16 @@ public static System.Drawing.Bitmap GsaLogo64 {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized resource of type System.Drawing.Bitmap.
+        /// </summary>
+        public static System.Drawing.Bitmap GwaModel {
+            get {
+                object obj = ResourceManager.GetObject("GwaModel", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Drawing.Bitmap.
         /// </summary>
diff --git a/GsaGH/Properties/Resources.resx b/GsaGH/Properties/Resources.resx
index 6686e8faa..8bf40f42d 100644
--- a/GsaGH/Properties/Resources.resx
+++ b/GsaGH/Properties/Resources.resx
@@ -466,4 +466,7 @@
   <data name="TotalLoadAndReaction" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>Icons\TotalLoadAndReaction.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="GwaModel" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>Icons\GwaModel.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
 </root>
\ No newline at end of file