Index: Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.Designer.cs
===================================================================
diff -u -r5fb13b35ed6bba8b867b95826e85dddb064b7036 -r998e73d396cfffed52646ecd18dbe8c3eee06497
--- Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 5fb13b35ed6bba8b867b95826e85dddb064b7036)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 998e73d396cfffed52646ecd18dbe8c3eee06497)
@@ -40,7 +40,7 @@
     // class via a tool like ResGen or Visual Studio.
     // To add or remove a member, edit your .ResX file then rerun ResGen
     // with the /str option, or rebuild your VS project.
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
     public class Resources {
@@ -217,6 +217,24 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Categoriegrens (kans) waarvoor de berekening moet worden uitgevoerd..
+        /// </summary>
+        public static string WaveConditionsInput_CategoryType_Description {
+            get {
+                return ResourceManager.GetString("WaveConditionsInput_CategoryType_Description", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Categoriegrens.
+        /// </summary>
+        public static string WaveConditionsInput_CategoryType_DisplayName {
+            get {
+                return ResourceManager.GetString("WaveConditionsInput_CategoryType_DisplayName", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to Ondergrens van de bekleding..
         /// </summary>
         public static string WaveConditionsInput_LowerBoundaryRevetment_Description {
Index: Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.resx
===================================================================
diff -u -r5fb13b35ed6bba8b867b95826e85dddb064b7036 -r998e73d396cfffed52646ecd18dbe8c3eee06497
--- Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 5fb13b35ed6bba8b867b95826e85dddb064b7036)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/Properties/Resources.resx	(.../Resources.resx)	(revision 998e73d396cfffed52646ecd18dbe8c3eee06497)
@@ -270,4 +270,10 @@
   <data name="WaveConditionsChartDataFactory_RevetmentBase_DisplayName" xml:space="preserve">
     <value>Hulplijn bekleding</value>
   </data>
+  <data name="WaveConditionsInput_CategoryType_Description" xml:space="preserve">
+    <value>Categoriegrens (kans) waarvoor de berekening moet worden uitgevoerd.</value>
+  </data>
+  <data name="WaveConditionsInput_CategoryType_DisplayName" xml:space="preserve">
+    <value>Categoriegrens</value>
+  </data>
 </root>
\ No newline at end of file
Index: Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/PropertyClasses/WaveConditionsInputContextProperties.cs
===================================================================
diff -u -rbb5ffc8cd070e506de1904ed9b1a8dbf63a42680 -r998e73d396cfffed52646ecd18dbe8c3eee06497
--- Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/PropertyClasses/WaveConditionsInputContextProperties.cs	(.../WaveConditionsInputContextProperties.cs)	(revision bb5ffc8cd070e506de1904ed9b1a8dbf63a42680)
+++ Ringtoets/Revetment/src/Ringtoets.Revetment.Forms/PropertyClasses/WaveConditionsInputContextProperties.cs	(.../WaveConditionsInputContextProperties.cs)	(revision 998e73d396cfffed52646ecd18dbe8c3eee06497)
@@ -49,34 +49,37 @@
     /// </summary>
     /// <typeparam name="TContext">The type of the wave conditions input context.</typeparam>
     /// <typeparam name="TInput">The type of the contained wave conditions input.</typeparam>
-    public abstract class WaveConditionsInputContextProperties<TContext, TInput> : ObjectProperties<TContext>,
-                                                                                   IHasHydraulicBoundaryLocationProperty,
-                                                                                   IHasForeshoreProfileProperty
+    /// <typeparam name="TCategory">The category type contained by the wave conditions input.</typeparam>
+    public abstract class WaveConditionsInputContextProperties<TContext, TInput, TCategory>
+        : ObjectProperties<TContext>,
+          IHasHydraulicBoundaryLocationProperty,
+          IHasForeshoreProfileProperty
         where TContext : WaveConditionsInputContext<TInput>
         where TInput : WaveConditionsInput
     {
         private const int hydraulicBoundaryLocationPropertyIndex = 0;
-        private const int assessmentLevelPropertyIndex = 1;
-        private const int upperBoundaryDesignWaterLevelPropertyIndex = 2;
-        private const int upperBoundaryRevetmentPropertyIndex = 3;
-        private const int lowerBoundaryRevetmentPropertyIndex = 4;
-        private const int upperBoundaryWaterLevelsPropertyIndex = 5;
-        private const int lowerBoundaryWaterLevelsPropertyIndex = 6;
-        private const int stepSizePropertyIndex = 7;
-        private const int waterLevelsPropertyIndex = 8;
+        private const int categoryTypePropertyIndex = 1;
+        private const int assessmentLevelPropertyIndex = 2;
+        private const int upperBoundaryDesignWaterLevelPropertyIndex = 3;
+        private const int upperBoundaryRevetmentPropertyIndex = 4;
+        private const int lowerBoundaryRevetmentPropertyIndex = 5;
+        private const int upperBoundaryWaterLevelsPropertyIndex = 6;
+        private const int lowerBoundaryWaterLevelsPropertyIndex = 7;
+        private const int stepSizePropertyIndex = 8;
+        private const int waterLevelsPropertyIndex = 9;
 
-        private const int foreshoreProfilePropertyIndex = 9;
-        private const int worldReferencePointPropertyIndex = 10;
-        private const int orientationPropertyIndex = 11;
-        private const int breakWaterPropertyIndex = 12;
-        private const int foreshoreGeometryPropertyIndex = 13;
-        private const int revetmentTypePropertyIndex = 14;
+        private const int foreshoreProfilePropertyIndex = 10;
+        private const int worldReferencePointPropertyIndex = 11;
+        private const int orientationPropertyIndex = 12;
+        private const int breakWaterPropertyIndex = 13;
+        private const int foreshoreGeometryPropertyIndex = 14;
+        private const int revetmentTypePropertyIndex = 15;
 
         private readonly Func<RoundedDouble> getNormativeAssessmentLevelFunc;
         private readonly IObservablePropertyChangeHandler propertyChangeHandler;
 
         /// <summary>
-        /// Creates a new instance of <see cref="WaveConditionsInputContextProperties{TContext,TInput}"/>.
+        /// Creates a new instance of <see cref="WaveConditionsInputContextProperties{TContext,TInput,TCategory}"/>.
         /// </summary>
         /// <param name="context">The <see cref="WaveConditionsInputContext{TInput}"/> for which the properties are shown.</param>
         /// <param name="getNormativeAssessmentLevelFunc"><see cref="Func{TResult}"/> for obtaining the normative assessment level.</param>
@@ -107,6 +110,13 @@
             this.propertyChangeHandler = propertyChangeHandler;
         }
 
+        [PropertyOrder(categoryTypePropertyIndex)]
+        [TypeConverter(typeof(EnumTypeConverter))]
+        [ResourcesCategory(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.Categories_HydraulicData))]
+        [ResourcesDisplayName(typeof(Resources), nameof(Resources.WaveConditionsInput_CategoryType_DisplayName))]
+        [ResourcesDescription(typeof(Resources), nameof(Resources.WaveConditionsInput_CategoryType_Description))]
+        public abstract TCategory CategoryType { get; set; }
+
         [PropertyOrder(assessmentLevelPropertyIndex)]
         [ResourcesCategory(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.Categories_HydraulicData))]
         [ResourcesDisplayName(typeof(RingtoetsCommonFormsResources), nameof(RingtoetsCommonFormsResources.AssessmentLevel_DisplayName))]