Just use 12 inches for each setting. Package size doesn't matter unless you specify a size that is considered "oversized" which adds to the amount charged for shipping.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.