3x4grid.com

Build unique variations of CSS code on a 3×4 grid drag-and-drop CSS generator. 
Grid Builder enables you to easily build an HTML grid with a simple drag-and-drop interface.

Drag units from the key into the grid area.
When you're finished, simply press the "Show me the code" button to see the HTML code.
Copy the code and paste it into your HTML editor.
Use this as a base structure for creating a web page.

http://www.3x4grid.com/ 

Visit 3x4Grid