Index: src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs
===================================================================
diff -u -r702 -r704
--- src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 702)
+++ src/Deltares.DSoilModel.Forms.Tests/DSoilModelContextTest.cs	(.../DSoilModelContextTest.cs)	(revision 704)
@@ -308,16 +308,18 @@
             }
         }
 
-        [Test]
-        public void DSoilModelContext_GetFormat()
+        [TestCase(typeof(ConePenetrationTestPerSegment), "Xlocal", "F3")]
+        [TestCase(typeof(BoringPerSegment), "Xlocal", "F3")]
+        [TestCase(typeof(Boring), "BoringDiameter", "F3")]
+        [TestCase(typeof(Boring), "PreExcavation", "F3")]
+        [TestCase(typeof(Boring), "GroundWaterLevel", "F3")]
+        [TestCase(typeof(BoringLayer), "TopLevel", "F3")]
+        [TestCase(typeof(BoringLayer), "BottomLevel", "F3")]
+        public void DSoilModelContext_GetFormat(Type type, string member, string format)
         {
             var dSoilModelContext = SetupDSoilModelContext(null);
 
-            Assert.AreEqual("F3", dSoilModelContext.GetFormat(typeof(ConePenetrationTestPerSegment), null, "Xlocal"));
-            Assert.AreEqual("F3", dSoilModelContext.GetFormat(null, new ConePenetrationTestPerSegment(), "Xlocal"));
-
-            Assert.AreEqual("F3", dSoilModelContext.GetFormat(typeof(BoringPerSegment), null, "Xlocal"));
-            Assert.AreEqual("F3", dSoilModelContext.GetFormat(null, new BoringPerSegment(), "Xlocal"));
+            Assert.AreEqual(format, dSoilModelContext.GetFormat(type, null, member));
         }
 
         private static void AdhereToFilter(UserColumnFilters? filter, ICollection<string> visibleProperties)
Index: src/Deltares.DSoilModel.Forms/DSoilModelContext.cs
===================================================================
diff -u -r702 -r704
--- src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 702)
+++ src/Deltares.DSoilModel.Forms/DSoilModelContext.cs	(.../DSoilModelContext.cs)	(revision 704)
@@ -479,6 +479,12 @@
                 }
             }
 
+            if (type == typeof(Boring) || source is Boring ||
+                type == typeof(BoringLayer) || source is BoringLayer)
+            {
+                return "F3";
+            }
+
             return base.GetFormat(type, source, member);
         }