Why can't I locate a swinging door for my kitchen? Is it that all I need to do is buy special hinges?

I moved into my grandparents' old bungalow, and the swinging door that led from the dining room to the kitchen that I remember from decades back is gone now. We had tenants in the place for a long time, and I guess they removed it, but it's nowhere to be found. I did an online search for 'swinging doors, but came up empty. I don't want a regular hinged door, a bifold door, or a cafe door. It needs to go all the way to the floor and be sturdy enough to keep my cat out when I need her to, but be easy to move from room to room while carrying dishes of food. Am I searching for the wrong thing? Am I just supposed to buy a regular six-panel door with no knob hold to fit, but hang it on special hinges?