42" wide, 31.8" tall. Much smaller on wallpaper. One chart per yard on any fabric (plus another partial map on wider fabrics). Search Spoonflower for 'greatlakeschart' or 'noaachart' to see related charts, or other NOAA charts. Want this resized or recolored? Want a different NOAA chart? Just ask! --- NOAA charts are public domain for United States maps.