Index: Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/ReadPipingCalculationGroup.cs
===================================================================
diff -u -rc1096d1261fc843ca6960897afeac1137e1ecd4c -r3d6a48f3fe59a0882fa8ed12da0a98b97adfb0f4
--- Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/ReadPipingCalculationGroup.cs	(.../ReadPipingCalculationGroup.cs)	(revision c1096d1261fc843ca6960897afeac1137e1ecd4c)
+++ Ringtoets/Piping/src/Ringtoets.Piping.IO/Readers/ReadPipingCalculationGroup.cs	(.../ReadPipingCalculationGroup.cs)	(revision 3d6a48f3fe59a0882fa8ed12da0a98b97adfb0f4)
@@ -29,6 +29,17 @@
     public class ReadPipingCalculationGroup : IReadPipingCalculationItem
     {
         /// <summary>
+        /// Creates a new instance of <see cref="ReadPipingCalculationGroup"/>.
+        /// </summary>
+        /// <param name="name">The name the piping calculation group.</param>
+        /// <param name="items">The collection of nested <see cref="IReadPipingCalculationItem"/>.</param>
+        public ReadPipingCalculationGroup(string name, IEnumerable<IReadPipingCalculationItem> items)
+        {
+            Name = name;
+            Items = items;
+        }
+
+        /// <summary>
         /// Gets the collection of nested <see cref="IReadPipingCalculationItem"/>.
         /// </summary>
         public IEnumerable<IReadPipingCalculationItem> Items { get; private set; }
Index: Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Readers/ReadPipingCalculationGroupTest.cs
===================================================================
diff -u -r0e8f4dc487699dda631e50c389624f191f8e946d -r3d6a48f3fe59a0882fa8ed12da0a98b97adfb0f4
--- Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Readers/ReadPipingCalculationGroupTest.cs	(.../ReadPipingCalculationGroupTest.cs)	(revision 0e8f4dc487699dda631e50c389624f191f8e946d)
+++ Ringtoets/Piping/test/Ringtoets.Piping.IO.Test/Readers/ReadPipingCalculationGroupTest.cs	(.../ReadPipingCalculationGroupTest.cs)	(revision 3d6a48f3fe59a0882fa8ed12da0a98b97adfb0f4)
@@ -21,20 +21,30 @@
 
 using NUnit.Framework;
 using Ringtoets.Piping.IO.Readers;
+using System.Collections.Generic;
+using System.Linq;
 
 namespace Ringtoets.Piping.IO.Test.Readers
 {
     [TestFixture]
     public class ReadPipingCalculationGroupTest
     {
         [Test]
-        public void DefaultConstructor_DefaultValues()
+        public void Constructor_ExpectedValues()
         {
+            // Setup
+            var nestedItems = new List<IReadPipingCalculationItem>
+            {
+                new ReadPipingCalculation(new ReadPipingCalculation.ConstructionProperties()),
+                new ReadPipingCalculationGroup("Nested calculation group", Enumerable.Empty<IReadPipingCalculationItem>())
+            };
+
             // Call
-            var readPipingCalculationGroup = new ReadPipingCalculationGroup();
+            var readPipingCalculationGroup = new ReadPipingCalculationGroup("Calculation group", nestedItems);
 
             // Assert
             Assert.IsInstanceOf<IReadPipingCalculationItem>(readPipingCalculationGroup);
+            Assert.AreSame(nestedItems, readPipingCalculationGroup.Items);
         }
     }
 }
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