What's a regular parking spot depends on where you are.
I drive a 19 foot full-size van in a part of the country where half the population is driving crew cab pickups, and though I find some spaces tight on width (van has big swinging front doors) most spaces are long enough. Turning circle on the van is kind of wide.
But I've lived several years in Chicago, and there it is kind of hard to find a space to fit a van. Particularly parallel parking, and the size of spaces inside the parking structures. Its probably not so bad out in the suburbs where popularity of SUVs has redefined what is a standard size.
Most recent experience has been in the Detroit area. Shopping malls are fine when lots are not full, and major supermarkets usually have big enough lots that you can find empty areas where I don't crowd people to much, though spaces tend to be marked kind of narrow for vans, and full-size trucks or large SUVs.
Strip malls and restaurants in Detroit and the near suburbs are more of a problem. It's like Chicago, where spaces are small, aisles are narrow, to make the greatest number of spaces in the least area. When I find a space I can slot into, it usually takes two or three passes to get the van straight in and centered, and then it sticks out an extra foot or foot and a half into that narrow traffic aisle. An extended van, a long bed crew cab, anything else 21-22 feet long will stick out that much further. Some suburbs with angle parking on the street, they will ticket if you stick out into the traffic lane.
So it is a lot different in Detroit than in Oklahoma. What it is like in SLC, I don't know. You are familiar with what parking is like there, and that might be why you are asking the question.
