Rock America Music Door Posters are highest quality, licensed band door posters designed to fit on a standard closet or bedroom door. The approximate size of music door posters is 21” width by 62” height. Rock America Music Door Posters are printed on highest quality poster paper. They are carefully rolled and wrapped in plastic before being shipped. All our music door posters are shipped in a durable cardboard tube for their protection. If you are looking for a music poster to hang on your wall or your door, we have the hottest bands! Johnny Cash Finger Door Poster. Official large Johnny Cash door poster designed to fit on a standard closet or bedroom door.