Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/PropertyClasses/HeightStructuresFailureMechanismProperties.cs
===================================================================
diff -u -rac96d7c315129af851634ed5a4a6800b59ede718 -r401ea38da560543cd91415c326b9463976b2e80a
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/PropertyClasses/HeightStructuresFailureMechanismProperties.cs	(.../HeightStructuresFailureMechanismProperties.cs)	(revision ac96d7c315129af851634ed5a4a6800b59ede718)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Forms/PropertyClasses/HeightStructuresFailureMechanismProperties.cs	(.../HeightStructuresFailureMechanismProperties.cs)	(revision 401ea38da560543cd91415c326b9463976b2e80a)
@@ -62,10 +62,12 @@
             {
                 throw new ArgumentNullException(nameof(data));
             }
+
             if (handler == null)
             {
                 throw new ArgumentNullException(nameof(handler));
             }
+
             Data = data;
             propertyChangeHandler = handler;
         }
@@ -77,7 +79,7 @@
         [ResourcesCategory(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.Categories_LengthEffect))]
         [ResourcesDisplayName(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.FailureMechanism_N_DisplayName))]
         [ResourcesDescription(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.FailureMechanism_N_Description))]
-        public int LengthEffect
+        public RoundedDouble LengthEffect
         {
             get
             {
@@ -103,6 +105,7 @@
             {
                 return false;
             }
+
             return true;
         }