Index: Riskeer/Common/src/Riskeer.Common.Forms/Providers/ILengthEffectProvider.cs
===================================================================
diff -u
--- Riskeer/Common/src/Riskeer.Common.Forms/Providers/ILengthEffectProvider.cs	(revision 0)
+++ Riskeer/Common/src/Riskeer.Common.Forms/Providers/ILengthEffectProvider.cs	(revision a0bb29e75720a0d7ab00b8d9319ce26544a8c603)
@@ -0,0 +1,39 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+namespace Riskeer.Common.Forms.Providers
+{
+    /// <summary>
+    /// Interface for providing length effect properties.
+    /// </summary>
+    public interface ILengthEffectProvider
+    {
+        /// <summary>
+        /// Gets whether the length effect should be used.
+        /// </summary>
+        bool UseLengthEffect { get; }
+
+        /// <summary>
+        /// Gets the n value of the section.
+        /// </summary>
+        double SectionN { get; }
+    }
+}
\ No newline at end of file
Index: Riskeer/Common/src/Riskeer.Common.Forms/Providers/LengthEffectProvider.cs
===================================================================
diff -u
--- Riskeer/Common/src/Riskeer.Common.Forms/Providers/LengthEffectProvider.cs	(revision 0)
+++ Riskeer/Common/src/Riskeer.Common.Forms/Providers/LengthEffectProvider.cs	(revision a0bb29e75720a0d7ab00b8d9319ce26544a8c603)
@@ -0,0 +1,61 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+
+namespace Riskeer.Common.Forms.Providers
+{
+    /// <summary>
+    /// Provider for length effect properties.
+    /// </summary>
+    public class LengthEffectProvider : ILengthEffectProvider
+    {
+        private readonly Func<bool> getUseLengthEffectFunc;
+        private readonly Func<double> getSectionNFunc;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="LengthEffectProvider"/>.
+        /// </summary>
+        /// <param name="getUseLengthEffectFunc">The <see cref="Func{TResult}"/> to get whether
+        /// the length effect should be used.</param>
+        /// <param name="getSectionNFunc">The <see cref="Func{TResult}"/> to get the section n.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        public LengthEffectProvider(Func<bool> getUseLengthEffectFunc, Func<double> getSectionNFunc)
+        {
+            if (getUseLengthEffectFunc == null)
+            {
+                throw new ArgumentNullException(nameof(getUseLengthEffectFunc));
+            }
+
+            if (getSectionNFunc == null)
+            {
+                throw new ArgumentNullException(nameof(getSectionNFunc));
+            }
+
+            this.getUseLengthEffectFunc = getUseLengthEffectFunc;
+            this.getSectionNFunc = getSectionNFunc;
+        }
+
+        public bool UseLengthEffect => getUseLengthEffectFunc();
+
+        public double SectionN => getSectionNFunc();
+    }
+}
\ No newline at end of file
Index: Riskeer/Common/test/Riskeer.Common.Forms.Test/Providers/LengthEffectProviderTest.cs
===================================================================
diff -u
--- Riskeer/Common/test/Riskeer.Common.Forms.Test/Providers/LengthEffectProviderTest.cs	(revision 0)
+++ Riskeer/Common/test/Riskeer.Common.Forms.Test/Providers/LengthEffectProviderTest.cs	(revision a0bb29e75720a0d7ab00b8d9319ce26544a8c603)
@@ -0,0 +1,71 @@
+// Copyright (C) Stichting Deltares 2021. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using Core.Common.TestUtil;
+using NUnit.Framework;
+using Riskeer.Common.Forms.Providers;
+
+namespace Riskeer.Common.Forms.Test.Providers
+{
+    [TestFixture]
+    public class LengthEffectProviderTest
+    {
+        [Test]
+        public void Constructor_GetUseLengthEffectFuncNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => new LengthEffectProvider(null, () => double.NaN);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("getUseLengthEffectFunc", exception.ParamName);
+        }
+
+        [Test]
+        public void Constructor_GetSectionNFuncNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => new LengthEffectProvider(() => true, null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("getSectionNFunc", exception.ParamName);
+        }
+
+        [Test]
+        public void Constructor_ExpectedValues()
+        {
+            // Setup
+            var random = new Random(21);
+            bool useLengthEffect = random.NextBoolean();
+            double sectionN = random.NextDouble();
+
+            // Call
+            var provider = new LengthEffectProvider(() => useLengthEffect, () => sectionN);
+
+            // Assert
+            Assert.IsInstanceOf<ILengthEffectProvider>(provider);
+            Assert.AreEqual(useLengthEffect, provider.UseLengthEffect);
+            Assert.AreEqual(sectionN, provider.SectionN);
+        }
+    }
+}
\ No newline at end of file