[retiredguy123]

Almost anything can be hung on a wall using high quality drywall anchors that expand behind the drywall, even shelving. No need to attach it to a stud. A television would be an exception.

[coconutmama]

Depends on the builder. Some prefer metal. We wanted wooden studs, which we got through out. We checked on our house almost every day during the build. It was fun & educational. For example, we knew our trusses & roof went up in dry weather.

[HORNET]

I went to a new construction site and found my house model, took pictures of what studs are which.