Cost based on size

[webrob]

I have read around and saw this post about cast of product based on size: http://www.zen-cart.com/forum/showthread.php?t=33423
but I swore I posted a thread about this before and someone replied with a better module that was for purchase.

Does anyone know of a good way to calculate the price of a product based on width and length? Even if it is not free. I would almost rather pay for a module.

Thank you!

[kobra]

You asked this in this Thread and received the response that this is not calculated by Zen Cart.
From your descriptions, this is for the size of a photo print. How many different either in width or length variables are there. Or maybe better to ask is there not some standards that should be adhered to i.e. 5x7, 8x10, 11x14, or a ratio between length and width? Is there any max width or length restrictions?
There should be something that can make this simple...