Many new trailers and flat beds use tropical hard woods of different species/names, such as
Apitong, IPÊ, and purpleheart. I've seen all of the above and they look nice and very durable.
Around here quarter swan white oak is still be my first choice, but if I wanted to spend some money apitong would be great.
If you use green wood put it down with no space, when it dries you'll have a space.
If you use dry wood you should leave a space so it doesn't swell up enough to bind and buckle the floor.
Grigg
