Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs
===================================================================
diff -u -rd5daf17a6ed66dddef590069e4db152f6250c2c3 -ree9ea66795cde20ae1bd8a096333476e49d0d558
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision d5daf17a6ed66dddef590069e4db152f6250c2c3)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision ee9ea66795cde20ae1bd8a096333476e49d0d558)
@@ -363,7 +363,7 @@
             {
                 if (double.IsNaN(value))
                 {
-                    structureNormalOrientation = (RoundedDouble) double.NaN;
+                    structureNormalOrientation = new RoundedDouble(2, double.NaN);
                     return;
                 }
 
Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs
===================================================================
diff -u -rd5daf17a6ed66dddef590069e4db152f6250c2c3 -ree9ea66795cde20ae1bd8a096333476e49d0d558
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision d5daf17a6ed66dddef590069e4db152f6250c2c3)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision ee9ea66795cde20ae1bd8a096333476e49d0d558)
@@ -205,7 +205,7 @@
             {
                 if (double.IsNaN(value))
                 {
-                    structureNormalOrientation = (RoundedDouble) double.NaN;
+                    structureNormalOrientation = new RoundedDouble(2, double.NaN);
                     return;
                 }
 
Index: Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs
===================================================================
diff -u -rd5daf17a6ed66dddef590069e4db152f6250c2c3 -ree9ea66795cde20ae1bd8a096333476e49d0d558
--- Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs	(.../WaveConditionsInput.cs)	(revision d5daf17a6ed66dddef590069e4db152f6250c2c3)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.Data/WaveConditionsInput.cs	(.../WaveConditionsInput.cs)	(revision ee9ea66795cde20ae1bd8a096333476e49d0d558)
@@ -111,7 +111,7 @@
             {
                 if (double.IsNaN(value))
                 {
-                    orientation = (RoundedDouble)double.NaN;
+                    orientation = new RoundedDouble(2, double.NaN);
                     return;
                 }
 
Index: Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/WaveConditionsInputTest.cs
===================================================================
diff -u -rd5daf17a6ed66dddef590069e4db152f6250c2c3 -ree9ea66795cde20ae1bd8a096333476e49d0d558
--- Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/WaveConditionsInputTest.cs	(.../WaveConditionsInputTest.cs)	(revision d5daf17a6ed66dddef590069e4db152f6250c2c3)
+++ Ringtoets/Revetment/test/Ringtoets.Revetment.Data.Test/WaveConditionsInputTest.cs	(.../WaveConditionsInputTest.cs)	(revision ee9ea66795cde20ae1bd8a096333476e49d0d558)
@@ -289,7 +289,8 @@
             // Call
             input.Orientation = (RoundedDouble) orientation;
 
-            // Assert
+            //Assert
+            Assert.AreEqual(2, input.Orientation.NumberOfDecimalPlaces);
             Assert.AreEqual(orientation, input.Orientation, input.Orientation.GetAccuracy());
         }