diff --git a/examples/Excel/Workbook-Test.xlsx b/examples/Excel/Workbook-Test.xlsx
index f6a5b6bc..eca655e5 100644
Binary files a/examples/Excel/Workbook-Test.xlsx and b/examples/Excel/Workbook-Test.xlsx differ
diff --git a/merlin-core/src/main/kotlin/de/micromata/merlin/excel/ExcelRow.kt b/merlin-core/src/main/kotlin/de/micromata/merlin/excel/ExcelRow.kt
index 81176d54..f4c62ba4 100644
--- a/merlin-core/src/main/kotlin/de/micromata/merlin/excel/ExcelRow.kt
+++ b/merlin-core/src/main/kotlin/de/micromata/merlin/excel/ExcelRow.kt
@@ -131,7 +131,7 @@ class ExcelRow(val sheet: ExcelSheet, val row: Row) {
     @JvmOverloads
     fun copyAndInsert(targetSheet: ExcelSheet? = null, insertPosition: Int = rowNum + 1): ExcelRow {
         val target = targetSheet ?: sheet
-        if (insertPosition <= sheet.poiSheet.lastRowNum) {
+        if (insertPosition <= target.poiSheet.lastRowNum) {
             target.shiftRows(insertPosition, n = 1)
         }
         val newPoiRow = target.poiSheet.createRow(insertPosition)
@@ -142,11 +142,21 @@ class ExcelRow(val sheet: ExcelSheet, val row: Row) {
     }
 
     fun copyCellsFrom(srcRow: ExcelRow) {
+        val numMergedRegions = mutableListOf<CellRangeAddress>()
+        srcRow.sheet.poiSheet.mergedRegions?.forEach { address ->
+            // Only merge region in this single row are supported.
+            if (address.firstRow == srcRow.rowNum && address.lastRow == srcRow.rowNum) {
+                numMergedRegions.add(address)
+            }
+        }
         for (colNum in 0..srcRow.lastCellNum) {
             val srcCell = srcRow.row.getCell(colNum)
             if (srcCell != null) {
                 val destCell = row.getCell(colNum) ?: row.createCell(colNum)
                 ExcelCell.copyCell(srcCell, destCell)
+                numMergedRegions.filter { it.firstColumn == srcCell.columnIndex }.forEach {
+                    sheet.addMergeRegion(CellRangeAddress(this.rowNum, this.rowNum, it.firstColumn, it.lastColumn))
+                }
             }
         }
     }
diff --git a/merlin-core/src/test/kotlin/de/micromata/merlin/excel/ExcelRowActionsTest.kt b/merlin-core/src/test/kotlin/de/micromata/merlin/excel/ExcelRowActionsTest.kt
index e9dd3385..795a7caa 100644
--- a/merlin-core/src/test/kotlin/de/micromata/merlin/excel/ExcelRowActionsTest.kt
+++ b/merlin-core/src/test/kotlin/de/micromata/merlin/excel/ExcelRowActionsTest.kt
@@ -19,6 +19,8 @@ internal class ExcelRowActionsTest {
         sheet1.getRow(3)!!.copyAndInsert(actionsSheet, 1)
         Assertions.assertEquals("k.reinhard@acme.com", actionsSheet.getRow(0)!!.getCell(1)!!.stringCellValue)
         Assertions.assertEquals("b.muster@acme.com", actionsSheet.getRow(1)!!.getCell(1)!!.stringCellValue)
+        val copiedRow = actionsSheet.getRow(1)!!
+        Assertions.assertTrue(actionsSheet.poiSheet.mergedRegions?.any { it.firstRow == copiedRow.rowNum && it.lastRow == copiedRow.rowNum && it.firstColumn == 5 && it.lastColumn == 7 } == true)
 
         Assertions.assertEquals(0.0, actionsSheet.getRow(2)!!.getCell(0)!!.numericCellValue)
         Assertions.assertEquals(1.0, actionsSheet.getRow(3)!!.getCell(0)!!.numericCellValue)
@@ -34,6 +36,9 @@ internal class ExcelRowActionsTest {
         Assertions.assertEquals(1.0, actionsSheet.getRow(5)!!.getCell(0)!!.numericCellValue)
         Assertions.assertEquals(1.5, actionsSheet.getRow(6)!!.getCell(0)!!.numericCellValue)
         Assertions.assertEquals(2.0, actionsSheet.getRow(7)!!.getCell(0)!!.numericCellValue)
+        Assertions.assertTrue(actionsSheet.poiSheet.mergedRegions?.any { it.firstRow == newRow.rowNum && it.lastRow == newRow.rowNum && it.firstColumn == 7 && it.lastColumn == 8 } == true)
+
+        sheet1.getRow(3)!!.copyAndInsert(actionsSheet, 14)
 
         val file = File(Definitions.OUTPUT_DIR, "RowActionsTest.xlsx")
         log.info("Writing checksum Excel file: " + file.getAbsolutePath())