diff --git a/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionFromNdmPrimitiveTest.cs b/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionFromNdmPrimitiveTest.cs
index 4a04d53..307e58e 100644
--- a/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionFromNdmPrimitiveTest.cs
+++ b/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionFromNdmPrimitiveTest.cs
@@ -1,17 +1,15 @@
 using LoaderCalculator;
-using LoaderCalculator.Data.Materials;
 using LoaderCalculator.Data.Matrix;
 using LoaderCalculator.Data.Ndms;
 using LoaderCalculator.Data.SourceData;
 using LoaderCalculator.Tests.Infrastructures.Logics;
 using NUnit.Framework;
-using StructureHelperLogics.Data.Shapes;
-using StructureHelperLogics.NdmCalculations.Entities;
-using StructureHelperLogics.NdmCalculations.Materials;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using System.Collections.Generic;
 using System.Threading;
-using StructureHelperLogics.Models.NdmPrimitives;
+using StructureHelperCommon.Models.Entities;
+using StructureHelperCommon.Models.NdmPrimitives;
+using StructureHelperCommon.Models.Shapes;
 
 namespace StructureHelperTests.FunctionalTests.Ndms.RCSections
 {
diff --git a/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionTest.cs b/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionTest.cs
index bf02474..9574179 100644
--- a/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionTest.cs
+++ b/StructureHelperTests/FunctionalTests/Ndms/RCSections/RCSectionTest.cs
@@ -1,16 +1,15 @@
 using LoaderCalculator;
-using LoaderCalculator.Data.Materials;
 using LoaderCalculator.Data.Matrix;
 using LoaderCalculator.Data.Ndms;
 using LoaderCalculator.Data.SourceData;
 using LoaderCalculator.Tests.Infrastructures.Logics;
 using NUnit.Framework;
-using StructureHelperLogics.Data.Shapes;
-using StructureHelperLogics.NdmCalculations.Entities;
-using StructureHelperLogics.NdmCalculations.Materials;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using System.Collections.Generic;
 using System.Threading;
+using StructureHelperCommon.Models.Entities;
+using StructureHelperCommon.Models.Materials;
+using StructureHelperCommon.Models.Shapes;
 
 namespace StructureHelperTests.FunctionalTests.Ndms.RCSections
 {
diff --git a/StructureHelperTests/FunctionalTests/Ndms/SteelSections/ReinforcementTest.cs b/StructureHelperTests/FunctionalTests/Ndms/SteelSections/ReinforcementTest.cs
index 230ba3f..bd95006 100644
--- a/StructureHelperTests/FunctionalTests/Ndms/SteelSections/ReinforcementTest.cs
+++ b/StructureHelperTests/FunctionalTests/Ndms/SteelSections/ReinforcementTest.cs
@@ -3,12 +3,12 @@ using LoaderCalculator.Data.Matrix;
 using LoaderCalculator.Data.SourceData;
 using LoaderCalculator.Tests.Infrastructures.Logics;
 using NUnit.Framework;
-using StructureHelperLogics.Data.Shapes;
-using StructureHelperLogics.NdmCalculations.Entities;
-using StructureHelperLogics.NdmCalculations.Materials;
 using StructureHelperLogics.NdmCalculations.Triangulations;
 using System.Collections.Generic;
 using System.Threading;
+using StructureHelperCommon.Models.Entities;
+using StructureHelperCommon.Models.Materials;
+using StructureHelperCommon.Models.Shapes;
 
 namespace StructureHelperTests.FunctionalTests.Ndms.SteelSections
 {
diff --git a/StructureHelperTests/Infrastructures/Logics/ExpectedProcessor.cs b/StructureHelperTests/Infrastructures/Logics/ExpectedProcessor.cs
index f729eac..b35907f 100644
--- a/StructureHelperTests/Infrastructures/Logics/ExpectedProcessor.cs
+++ b/StructureHelperTests/Infrastructures/Logics/ExpectedProcessor.cs
@@ -1,6 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Text;
 
 namespace LoaderCalculator.Tests.Infrastructures.Logics
 {
diff --git a/StructureHelperTests/LibrariesTests/Ndms/RCSections/RCSectionTest.cs b/StructureHelperTests/LibrariesTests/Ndms/RCSections/RCSectionTest.cs
index f50917f..dc128e8 100644
--- a/StructureHelperTests/LibrariesTests/Ndms/RCSections/RCSectionTest.cs
+++ b/StructureHelperTests/LibrariesTests/Ndms/RCSections/RCSectionTest.cs
@@ -5,14 +5,10 @@ using LoaderCalculator.Data.Ndms;
 using LoaderCalculator.Data.Ndms.Transformations;
 using LoaderCalculator.Data.Planes;
 using LoaderCalculator.Data.SourceData;
-using LoaderCalculator.Infrastructure;
 using LoaderCalculator.Tests.Infrastructures.Logics;
 using LoaderCalculator.Triangulations;
-using Moq;
 using NUnit.Framework;
-using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading;
 namespace LoaderCalculator.Tests.FunctionalTests.SectionTests
 {
diff --git a/StructureHelperTests/Properties/AssemblyInfo.cs b/StructureHelperTests/Properties/AssemblyInfo.cs
index b03a2ce..97c282f 100644
--- a/StructureHelperTests/Properties/AssemblyInfo.cs
+++ b/StructureHelperTests/Properties/AssemblyInfo.cs
@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 [assembly: AssemblyTitle("StructureHelperTests")]
diff --git a/StructureHelperTests/StructureHelperTests.csproj b/StructureHelperTests/StructureHelperTests.csproj
index 6776db4..5caf80a 100644
--- a/StructureHelperTests/StructureHelperTests.csproj
+++ b/StructureHelperTests/StructureHelperTests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>StructureHelperTests</RootNamespace>
     <AssemblyName>StructureHelperTests</AssemblyName>
-    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">15.0</VisualStudioVersion>
@@ -20,6 +20,7 @@
     <TestProjectType>UnitTest</TestProjectType>
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -74,6 +75,10 @@
   </ItemGroup>
   <ItemGroup />
   <ItemGroup>
+    <ProjectReference Include="..\StructureHelperCommon\StructureHelperCommon.csproj">
+      <Project>{5DFEC3FD-9677-47BB-9E88-EB71828B5913}</Project>
+      <Name>StructureHelperCommon</Name>
+    </ProjectReference>
     <ProjectReference Include="..\StructureHelperLogics\StructureHelperLogics.csproj">
       <Project>{330bef5b-15be-4d2c-a750-b1ae50fb2be3}</Project>
       <Name>StructureHelperLogics</Name>
diff --git a/StructureHelperTests/UnitTests/Ndms/Triangulations/RectangleTriangulationTest.cs b/StructureHelperTests/UnitTests/Ndms/Triangulations/RectangleTriangulationTest.cs
index 152ae97..46c04c7 100644
--- a/StructureHelperTests/UnitTests/Ndms/Triangulations/RectangleTriangulationTest.cs
+++ b/StructureHelperTests/UnitTests/Ndms/Triangulations/RectangleTriangulationTest.cs
@@ -1,21 +1,8 @@
 using LoaderCalculator.Data.Materials;
-using LoaderCalculator.Data.Materials.MaterialBuilders;
-using LoaderCalculator.Data.Matrix;
-using LoaderCalculator.Data.Ndms;
-using LoaderCalculator.Data.Ndms.Transformations;
-using LoaderCalculator.Data.Planes;
-using LoaderCalculator.Data.SourceData;
-using LoaderCalculator.Infrastructure;
-using LoaderCalculator.Tests.Infrastructures.Logics;
-using LoaderCalculator.Triangulations;
-using Moq;
 using NUnit.Framework;
-using System;
-using System.Collections.Generic;
 using System.Linq;
-using System.Threading;
+using StructureHelperCommon.Models.Shapes;
 using StructureHelperLogics.NdmCalculations.Triangulations;
-using StructureHelperLogics.Data.Shapes;
 
 namespace StructureHelperTests.UnitTests.Ndms.Triangulations
 {