I've developed a on demand product building shop where user can create product by selecting their desired type of glass.
Task is: I need to show the shipping charges via Fedex price and product dimensions are with me, Shipping calculated will also applied the checkout.
I'm exploring the : Fedex.php located at app\code\core\Mage\Usa\Model\Shipping\Carrier
Anybody has idea that could save time...very appreciated in advance. Thanks