diff --git a/demo/demo31.ts b/demo/demo31.ts
new file mode 100644
index 0000000000..366227102a
--- /dev/null
+++ b/demo/demo31.ts
@@ -0,0 +1,26 @@
+// Example of how you would create a table and add data to it
+// Import from 'docx' rather than '../build' if you install from npm
+import * as fs from "fs";
+import { Document, Packer, Paragraph, VerticalAlign } from "../build";
+
+const doc = new Document();
+
+const table = doc.createTable(2, 2);
+table
+    .getCell(1, 1)
+    .addContent(new Paragraph("This text should be in the middle of the cell"))
+    .CellProperties.setVerticalAlign(VerticalAlign.CENTER);
+
+table
+    .getCell(1, 0)
+    .addContent(
+        new Paragraph(
+            "Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah Blah",
+        ).heading1(),
+    );
+
+const packer = new Packer();
+
+packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});
diff --git a/demo/demo32.ts b/demo/demo32.ts
new file mode 100644
index 0000000000..373ca64266
--- /dev/null
+++ b/demo/demo32.ts
@@ -0,0 +1,35 @@
+// Example of how you would create a table and add data to it
+// Import from 'docx' rather than '../build' if you install from npm
+import * as fs from "fs";
+import { Document, Packer, Paragraph } from "../build";
+
+const doc = new Document();
+
+let table = doc.createTable(2, 2);
+
+table.getCell(0, 0).addContent(new Paragraph("Hello"));
+table.getRow(0).mergeCells(0, 1);
+
+doc.createParagraph("Another table").heading2();
+
+table = doc.createTable(2, 3);
+table.getCell(0, 0).addContent(new Paragraph("World"));
+table.getRow(0).mergeCells(0, 2);
+
+doc.createParagraph("Another table").heading2();
+
+table = doc.createTable(2, 4);
+table.getCell(0, 0).addContent(new Paragraph("Foo"));
+
+table.getCell(1, 0).addContent(new Paragraph("Bar1"));
+table.getCell(1, 1).addContent(new Paragraph("Bar2"));
+table.getCell(1, 2).addContent(new Paragraph("Bar3"));
+table.getCell(1, 3).addContent(new Paragraph("Bar4"));
+
+table.getRow(0).mergeCells(0, 3);
+
+const packer = new Packer();
+
+packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});
diff --git a/src/file/table/grid.ts b/src/file/table/grid.ts
index d9338e7dc4..0e477df946 100644
--- a/src/file/table/grid.ts
+++ b/src/file/table/grid.ts
@@ -1,3 +1,4 @@
+// http://officeopenxml.com/WPtableGrid.php
 import { XmlAttributeComponent, XmlComponent } from "file/xml-components";
 
 export class TableGrid extends XmlComponent {
diff --git a/src/file/table/table.ts b/src/file/table/table.ts
index 0406bdf549..f6201acedc 100644
--- a/src/file/table/table.ts
+++ b/src/file/table/table.ts
@@ -1,3 +1,4 @@
+// http://officeopenxml.com/WPtableGrid.php
 import {
     GridSpan,
     TableCellBorders,
@@ -60,7 +61,13 @@ export class Table extends XmlComponent {
     }
 
     public getRow(ix: number): TableRow {
-        return this.rows[ix];
+        const row = this.rows[ix];
+
+        if (!row) {
+            throw Error("Index out of bounds when trying to get row on table");
+        }
+
+        return row;
     }
 
     public getCell(row: number, col: number): TableCell {
@@ -93,17 +100,29 @@ export class TableRow extends XmlComponent {
     }
 
     public getCell(ix: number): TableCell {
-        return this.cells[ix];
+        const cell = this.cells[ix];
+
+        if (!cell) {
+            throw Error("Index out of bounds when trying to get cell on row");
+        }
+
+        return cell;
     }
 
-    public addGridSpan(ix: number, cellSpan: number): TableCell {
-        const remainCell = this.cells[ix];
+    public addGridSpan(index: number, cellSpan: number): TableCell {
+        const remainCell = this.cells[index];
         remainCell.CellProperties.addGridSpan(cellSpan);
-        this.cells.splice(ix + 1, cellSpan - 1);
-        this.root.splice(ix + 2, cellSpan - 1);
+        this.cells.splice(index + 1, cellSpan - 1);
+        this.root.splice(index + 2, cellSpan - 1);
 
         return remainCell;
     }
+
+    public mergeCells(startIndex: number, endIndex: number): TableCell {
+        const cellSpan = endIndex - startIndex + 1;
+
+        return this.addGridSpan(startIndex, cellSpan);
+    }
 }
 
 export class TableRowProperties extends XmlComponent {