osCommerce Search Box for dimensions

Client needs a modified search box for osCommerce. Our client is a box manufacturer, and we need to be able to search 12x13x14 for example. I need a string of 3 boxes that the client could add 12 13 14 and the script would combine and add 'x' so the search module searches title and description for 12x13x14. I will ensure all titles have the dimensions using this specific format. We'd like to call it [login to view URL] and I will add it to the cart layout myself. There is a perfect example of what I need here: [login to view URL] If you can suggest a better way to accomplish this, please feel free to email! Thanks for your time!