No camper dealers in my area so looked on the internet for jack pads. There is a lot of them out there each one a little thicker or thinner, and a little difference in shape. What do you use?
Forget the wood or manufactured pads. Go to a farm store - Rural King, Big R. and buy horse stall pads. They are thick rubber and stiff. Can be easily cut to size needed.
Inexpensive, light and also great if you park on asphalt or concrete