I read where someone was using the foam work mats under their ladder and a light bulb went off. I have wedding cake steps and currently use a shower stall liner, which works fine. However, I would like to raise my steps, to help the handrail line up with the deck better. Any issue with using these foam mats for that purpose? I would place them under the steps. I'm talking about the cheaper 2' x 2' foam mats that interlock. They usually sell them in packs of 4, 8, etc.