Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs
===================================================================
diff -u -r3cb5cd49de86f4379c54d71949a76e23c42f228a -r00168da71b7ca2b94166ca16179535ed6d2131b4
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs)	(revision 3cb5cd49de86f4379c54d71949a76e23c42f228a)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactory.cs)	(revision 00168da71b7ca2b94166ca16179535ed6d2131b4)
@@ -178,5 +178,56 @@
                 throw new AssemblyException(e.Message, e);
             }
         }
+
+        /// <summary>
+        /// Assembles the combined assembly.
+        /// </summary>
+        /// <param name="failureMechanismSectionResult">The failure mechanism section result to
+        /// combine the assemblies for.</param>
+        /// <param name="failureMechanism">The failure mechanism belonging to this section.</param>
+        /// <param name="assessmentSection">The <see cref="IAssessmentSection"/> belonging to this section.</param>
+        /// <returns>A <see cref="FailureMechanismSectionAssembly"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        /// <exception cref="AssemblyException">Thrown when the <see cref="FailureMechanismSectionAssembly"/>
+        /// could not be created.</exception>
+        public static FailureMechanismSectionAssembly AssembleCombinedAssembly(
+            HeightStructuresFailureMechanismSectionResult failureMechanismSectionResult,
+            HeightStructuresFailureMechanism failureMechanism,
+            IAssessmentSection assessmentSection)
+        {
+            if (failureMechanismSectionResult == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanismSectionResult));
+            }
+
+            if (failureMechanism == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanism));
+            }
+
+            if (assessmentSection == null)
+            {
+                throw new ArgumentNullException(nameof(assessmentSection));
+            }
+
+            FailureMechanismSectionAssembly simpleAssembly = AssembleSimpleAssessment(failureMechanismSectionResult);
+            FailureMechanismSectionAssembly detailedAssembly = AssembleDetailedAssembly(
+                failureMechanismSectionResult, failureMechanism, assessmentSection);
+            FailureMechanismSectionAssembly tailorMadeAssembly = AssembleTailorMadeAssembly(
+                failureMechanismSectionResult, failureMechanism, assessmentSection);
+
+            IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
+            IFailureMechanismSectionAssemblyCalculator calculator =
+                calculatorFactory.CreateFailureMechanismSectionAssemblyCalculator(AssemblyToolKernelFactory.Instance);
+
+            try
+            {
+                return calculator.AssembleCombined(simpleAssembly, detailedAssembly, tailorMadeAssembly);
+            }
+            catch (FailureMechanismSectionAssemblyCalculatorException e)
+            {
+                throw new AssemblyException(e.Message, e);
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs
===================================================================
diff -u -r3cb5cd49de86f4379c54d71949a76e23c42f228a -r00168da71b7ca2b94166ca16179535ed6d2131b4
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 3cb5cd49de86f4379c54d71949a76e23c42f228a)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs	(.../HeightStructuresFailureMechanismSectionResultAssemblyFactoryTest.cs)	(revision 00168da71b7ca2b94166ca16179535ed6d2131b4)
@@ -24,6 +24,7 @@
 using NUnit.Framework;
 using Rhino.Mocks;
 using Ringtoets.AssemblyTool.Data;
+using Ringtoets.AssemblyTool.Data.TestUtil;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators;
 using Ringtoets.AssemblyTool.KernelWrapper.Calculators.Assembly;
 using Ringtoets.AssemblyTool.KernelWrapper.TestUtil.Calculators;
@@ -445,5 +446,169 @@
         }
 
         #endregion
+
+        #region Combined Assembly
+
+        [Test]
+        public void AssembleCombinedAssembly_FailureMechanismSectionResultNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            // Call
+            TestDelegate call = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                null,
+                new HeightStructuresFailureMechanism(),
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanismSectionResult", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void AssembleCombinedAssembly_FailureMechanismNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            mocks.ReplayAll();
+
+            // Call
+            TestDelegate call = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection()),
+                null,
+                assessmentSection);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanism", exception.ParamName);
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void AssembleCombinedAssembly_AssessmentSectionNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection()),
+                new HeightStructuresFailureMechanism(),
+                null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("assessmentSection", exception.ParamName);
+        }
+
+        [Test]
+        public void AssembleCombinedAssembly_WithInput_SetsInputOnCalculator()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResult = new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                // Call
+                HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                    sectionResult,
+                    failureMechanism,
+                    assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly expectedSimpleAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleSimpleAssessment(
+                    sectionResult);
+                FailureMechanismSectionAssembly expectedDetailedAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleDetailedAssembly(
+                    sectionResult,
+                    failureMechanism,
+                    assessmentSection);
+                FailureMechanismSectionAssembly expectedTailorMadeAssembly = HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleTailorMadeAssembly(
+                    sectionResult,
+                    failureMechanism,
+                    assessmentSection);
+
+                AssemblyToolTestHelper.AssertAreEqual(expectedSimpleAssembly, calculator.CombinedSimpleAssemblyInput);
+                AssemblyToolTestHelper.AssertAreEqual(expectedDetailedAssembly, calculator.CombinedDetailedAssemblyInput);
+                AssemblyToolTestHelper.AssertAreEqual(expectedTailorMadeAssembly, calculator.CombinedTailorMadeAssemblyInput);
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleCombinedAssembly_AssemblyRan_ReturnsOutput()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResult = new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorFactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorFactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+
+                // Call
+                FailureMechanismSectionAssembly actualOutput =
+                    HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                        sectionResult,
+                        failureMechanism,
+                        assessmentSection);
+
+                // Assert
+                FailureMechanismSectionAssembly calculatorOutput = calculator.CombinedAssemblyOutput;
+                Assert.AreSame(calculatorOutput, actualOutput);
+                mocks.VerifyAll();
+            }
+        }
+
+        [Test]
+        public void AssembleCombinedAssembly_CalculatorThrowsException_ThrowsAssemblyException()
+        {
+            // Setup
+            var failureMechanism = new HeightStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            var sectionResult = new HeightStructuresFailureMechanismSectionResult(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                var calculatorfactory = (TestAssemblyToolCalculatorFactory)AssemblyToolCalculatorFactory.Instance;
+                FailureMechanismSectionAssemblyCalculatorStub calculator = calculatorfactory.LastCreatedFailureMechanismSectionAssemblyCalculator;
+                calculator.ThrowExceptionOnCalculateCombinedAssembly = true;
+
+                // Call
+                TestDelegate call = () => HeightStructuresFailureMechanismSectionResultAssemblyFactory.AssembleCombinedAssembly(
+                    sectionResult,
+                    new HeightStructuresFailureMechanism(),
+                    assessmentSection);
+
+                // Assert
+                var exception = Assert.Throws<AssemblyException>(call);
+                Exception innerException = exception.InnerException;
+                Assert.IsInstanceOf<FailureMechanismSectionAssemblyCalculatorException>(innerException);
+                Assert.AreEqual(innerException.Message, exception.Message);
+                mocks.VerifyAll();
+            }
+        }
+
+        #endregion
     }
 }
\ No newline at end of file
Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/Ringtoets.HeightStructures.Data.Test.csproj
===================================================================
diff -u -r739752c5cc7ed800dacf74e12221c227183ddc6f -r00168da71b7ca2b94166ca16179535ed6d2131b4
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/Ringtoets.HeightStructures.Data.Test.csproj	(.../Ringtoets.HeightStructures.Data.Test.csproj)	(revision 739752c5cc7ed800dacf74e12221c227183ddc6f)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Data.Test/Ringtoets.HeightStructures.Data.Test.csproj	(.../Ringtoets.HeightStructures.Data.Test.csproj)	(revision 00168da71b7ca2b94166ca16179535ed6d2131b4)
@@ -56,6 +56,10 @@
       <Project>{358B6DA2-A1DF-477F-B6AC-C30204265CB0}</Project>
       <Name>Ringtoets.AssemblyTool.KernelWrapper</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\AssemblyTool\test\Ringtoets.AssemblyTool.Data.TestUtil\Ringtoets.AssemblyTool.Data.TestUtil.csproj">
+      <Project>{C6EE9E6A-6578-49DF-914F-CDB531E61891}</Project>
+      <Name>Ringtoets.AssemblyTool.Data.TestUtil</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\AssemblyTool\test\Ringtoets.AssemblyTool.KernelWrapper.TestUtil\Ringtoets.AssemblyTool.KernelWrapper.TestUtil.csproj">
       <Project>{0AB432BB-E2CC-42EA-A72C-7AFEF7536B38}</Project>
       <Name>Ringtoets.AssemblyTool.KernelWrapper.TestUtil</Name>