32’ is pretty common for a residential 3 car garage; but everyone like more garage space!
Yes, it's very common, at least in this region. And it's what I call a "builder's" three-car garage. The builder can sell it to the buyers as a three-car, and the buyers will be so happy to be buying it. Then, they move in, try to park three cars in there, and realize that for daily living, it just doesn't work well at all. Here's why. This is not a large vehicle:
It's right around 6 feet wide, and has a wingspan of right around 12 feet. This means I can park three of them in a 30-foot wide garage, with almost, or barely, enough room to get the doors open on any one of them at a time, without contacting either a garage wall or an adjacent car, if I'm good enough to be able to place all three of them precisely across the width of the garage. Move the three vehicles six inches farther apart and you'll need 31 feet. Add another six inches of width for clearance to the side walls of the garage, and you're at 32 feet.
This example doesn't allow much in the way of clearances to the sides, and, as noted, it's built around three small-ish vehicles. It also allows for nothing else to occupy space along the side walls. No shelving, workbench, trash cans, bicycles, ladders, lawn mowers, snow throwers, or any of the other myriad things that tend to find their homes in the typical residential garage.
If a staircase intrudes, as is visible in the above photo, the picture worsens.
I would never build a three-car garage that's only 32 feet wide, if it were possible to make it wider. Not if its only intended purpose were to park three cars in it, and certainly not if it were intended that anything else would also reside in that garage. My absolute minimum width for a three-car would be 36 feet.
) or a Smart car, but the 3500 is just a tick over 22' 2" long.