What size postcard are you wanting?

Does space need left for the address, stamp, etc? Simply asking because none of the example show these areas on them.

Hello,
I will gladly give it a shot and hopefully offer you something that you are looking for. Please wait until you make an decision so I can have time to submit.
As the designer before me asked, I wanted to know if you have any specific dimention in mind.
Thank you.

We are looking for a regular sized US postcard. There should be some space for address and postage as it is required by the USPS