Cut the celotex insulation boards to size September 19, 2017 By AR 0 Found it easy to use saw rather than using something like Stanley knife. Related posts:Louis The Van YouTube ChannelMinibus To Camper | අපේ සංචාරක නිවහන on YouTubeEberspacher Airtronic Heater service Post navigation Previous PostPrevious Take mesurements of the blocks and cut insulation boardsNext PostNext Used some heavy duty adhesive to keep the board in the correct position