Great question! We very strongly recommend that you contact an interior design professional and/or a professional wallpaper installer for precise measurements of your project, whether it is a sofa to be upholstered or a dining room to be wallpapered. Measurements and consumption will also vary from pattern to pattern, depending on the width of the goods and the length of the pattern repeat. Our wallpapers and fabrics are made by hand, so it's important to get the quantity right the first time so that we can guarantee your entire order comes from the same production.All of the products you see here have their respective specifications listed such as repeat dimensions, wallpaper roll size and fabric width. Please share these details with your upholsterer or installer to help determine the quantity you'll need.