When I travel with my long (18 in and 24 in.) rulers I put them along the spine of my suitcase. They can't go on the top or the bottom because my suitcases are soft sided but the spine on my large suitcase is great support for the rulers. If I were moving I would do the same. I have a few large square rulers (12 in. and 16 in.) that I would put in a bottom of a drawer.