Index: Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r4b6e29ab07507a1383536a277e8b450cfa76e780
--- Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs	(.../HydraRingCalculatorBase.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/HydraRing/src/Ringtoets.HydraRing.Calculation/Calculator/HydraRingCalculatorBase.cs	(.../HydraRingCalculatorBase.cs)	(revision 4b6e29ab07507a1383536a277e8b450cfa76e780)
@@ -79,6 +79,28 @@
         }
 
         /// <summary>
+        /// Creates a new instance of <see cref="HydraRingCalculatorBase"/> with a default Hydra-Ring file parser
+        /// initialized.
+        /// </summary>
+        /// <param name="calculationSettings">The directory in which the hydraulic boundary database can be found.</param>
+        /// <remarks>Preprocessing is disabled when <see cref="HydraRingCalculationSettings.PreprocessorDirectory"/>
+        /// equals <see cref="string.Empty"/>.</remarks>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="calculationSettings"/> is <c>null</c>.</exception>
+        protected HydraRingCalculatorBase(HydraRingCalculationSettings calculationSettings)
+        {
+            if (calculationSettings == null)
+            {
+                throw new ArgumentNullException(nameof(calculationSettings));
+            }
+
+            hlcdDirectory = calculationSettings.HydraulicBoundaryLocationsConfigurationFilePath;
+            preprocessorDirectory = calculationSettings.PreprocessorDirectory;
+
+            lastErrorFileParser = new LastErrorFileParser();
+            illustrationPointsParser = new IllustrationPointsParser();
+        }
+
+        /// <summary>
         /// Gets the temporary output directory that is generated during the calculation.
         /// </summary>
         public string OutputDirectory { get; private set; }
Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs
===================================================================
diff -u -r2a81f01756e227d5ce93717b21b87e8a5cd5fcbb -r4b6e29ab07507a1383536a277e8b450cfa76e780
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs	(.../HydraRingCalculatorBaseTest.cs)	(revision 2a81f01756e227d5ce93717b21b87e8a5cd5fcbb)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/HydraRingCalculatorBaseTest.cs	(.../HydraRingCalculatorBaseTest.cs)	(revision 4b6e29ab07507a1383536a277e8b450cfa76e780)
@@ -78,6 +78,17 @@
         }
 
         [Test]
+        public void Constructor_CalculationSettingsNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new TestHydraRingCalculator(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("calculationSettings", exception.ParamName);
+        }
+
+        [Test]
         public void Calculate_WithCustomParser_ParsersExecutedAndOutputSet()
         {
             // Setup
@@ -172,6 +183,8 @@
 
         public TestHydraRingCalculator(string hlcdDirectory, string preprocessorDirectory) : base(hlcdDirectory, preprocessorDirectory) {}
 
+        public TestHydraRingCalculator(HydraRingCalculationSettings calculationSettings) : base(calculationSettings) {}
+
         public TestHydraRingCalculator(string hlcdDirectory, string preprocessorDirectory, IHydraRingFileParser parser) : base(hlcdDirectory, preprocessorDirectory)
         {
             this.parser = parser;