acdii Report post Posted November 12, 2014 Takes only a few minutes. Get the 1/2" pipe foam, and a pair of sharp scissors. Take one end and butt it to the edge, mark the first rib, and slice the foam keeping the seam to the inside, and place it, then cut the next one and so on until you get to the end and trim it, then squeeze and push it in until its nice and tight. One package did the top and two more pieces did the bottom, so get two bags of the 1/2" stuff, which has 4 pieces. I got mine at Menards. Quote Share this post Link to post Share on other sites