I've decided that this is on-topic for this NG since many of us order large
tools that have to be delivered freight.

When a truck driver drops a pallet in your garage, is he expecting a tip?
How much? What do you think?

It's never a question with the UPS guy since he is already gone before I can
even answer the door, but the freight guy is a different story.

This is why the whole concept of tipping sucks.