I've recently created three of these and also changed my recording space to another room in the house with higher ceilings plus hard wood floor/carpet combination. I have them arranged in a "U" shape around me. I worked with this company
http://www.acoustimac.com/owens-corning-703-6/
and had a good experience. I didn't go with the Corning 703, but opted for their Eco Core material. No issues with skin contact....recyclable ......but, I highly recommend covering them as they do "shed" little particles! I didn't put them in frames as they will stand on their own or with support with leaning into each other or up against something ( I use two dining room chairs to help with this) and they are light enough to cart around and arrange as I need them for a recording project. A sound engineer recommended them for my needs.