16.5 x 11.7 in
If the photograph is 4" wide and the mural is 80" wide then the scale is 4:80 which simplifies to 1:20. That is, 1" on the photograph is represented by 20" on the mural. If the photograph is 5" long, then the equivalent length of the mural is 5 x 20 =100"
Product Dimensions: 20 x 20 x 20 inches ; 15 pounds
Ten billion rolls that are each 25 feet long and one billionth of a foot wide.
60 inches wide and 80 inches long, plus whatever overhang you want.
Most poster board measures about 19 inches by 24 inches. This matte board come in a variety of colors, from white to beige to blue, and trims down easily due to its lightweight, flexible nature. These poster boards transport easily and work well for mounting standard sheets of paper and photographic prints.