I used the cheapest wood money could buy at the co-op, twisted pine
It is soft yes, got a few decent dings from hauling gravel for my shop construction
The plan was to swap it out for better wood in the future
-s
Ditto on the cheapest stuff at the box store. Ripped it and grooved it on table saw and lathered it in black outdoor paint and its wearing in nicely with the dust and grit from driving and moving stuff. My truck sits inside and I do use it to haul things. Just brought home a TH400 and a snowmobile for my kiddo last week. Dragged it right in there without even thinking about the wood. The more it wears in the better it looks in my situation.