I was at Menards today and they have a roll of padding for under wood floors, ⅛" foam just like electronics would be packaged in. It is 30 ft long and 3.3 ft wide for $24. Would being only about half the width needed be a problem for an underquilt? Any issues with having a seam in the UQ insulation? I figured if I used it, I would stager the layers so one is split at the center, and the next off to the sides, etc… Any suggestions for how to join the pieces?