I want to know that the field for checkbox labeled as "Use the dimensions of this product for shipping cost calculation" when adding product in backend is where situated in database(ie. table name and field name) xcart? Thanks.
if you are talking about provider shipping rates, then table name is xcart_shipping_rates,
and if you are asking about calculation while adding new product then as i worked in x-cart it was just j javascript which is counting ct commisions. based on product weight, price and free shipping as Y or N. it will be found in skin/common_files/main/product_details.tpl