On Fri, 24 Feb 2017 21:47:06 -0600, "Terry Coombs"
wrote:

I've seen skirting that was cut from sheet of trellis material. Can be
in sections, removable for storage under the home. Read once a person
used bails of hay for insulation to keep the cold out from under the
home.

Hay bales are not recommended , they attract mice .

.... or donkeys :-)