Adventure Wagons recommended DIY floor insulation. We use this white Thinsulate to layer on under your choice of AdWag's Coin Matte or Bamboo flooring to help deaden sound and provide thermal insulation.
Floor Thinsulate is sold at $6 / linear foot and comes in 5 foot wide rolls. We recommend 14 LF for a 144 and 15 LF for a 170.
Adventure Wagons Floor Kit Video