Sure it is possible! It's very simple actually! I have automatic BOM calculator for those who want different dimensions. In your case it would be best to extend Y axis by desired length. Then you can decide what type of door you would like to have (one big door opening up) or 3 separate doors or 2 split doors... and if that required extra 1-2 vertical profiles or not. It's very easily doable all together. If you need any more information, please contact me by private message.