What would be the cheapest way to underpin a trailer?

We live in a travel trailer and it is freezing where we are. What would be the cheapest way to underpin the trailer to keep the pipes from freezing?

2010-01-03T14:45:21Z

This is a temporary location but will be in this location for the winter. Straw or Hay is cost prohibitive.

2010-01-03T14:46:01Z

As is concrete blocks.

USMC2010-01-05T13:49:32Z

Favorite Answer

Build a 4' X 8' frame with 2" X 2"s and then put insulation in between the 2" X 2"s. Build as many as it will take to go around the trailer and place them up against the trailer using 2 concrete blocks per panel. This way they can be removed when needed and stacked and covered for storage.

ardaly2016-09-28T09:44:02Z

Underpinning For Trailers

Anonymous2010-01-03T10:32:26Z

You do not say whether it is a temporary or permanent location.
If very temporary, get cheap plastic tarps, double or triple fold them and secure to the trailer with wood strips and to the ground with dirt or rocks.
If available, you could put bales of hay around the trailer. They could still be used as cattle feed.
If more permanent, use cinder blocks or bricks cemented in place.