Overall size, molding width, color, material and matting all affect the appearance of the finished poster. Most frames made specifically for posters come in standard sizes to match the art they are designed to hold. Some prints, however, are not made in a standard size. They can, of course, be cut down to fit a slightly smaller frame. If you don t want to lose part of the image, the next larger size can be used.
Many poster frames come with mats.
These are simply sheets of neutral colored material that fit the frame exactly. The poster is mounted on top of or beneath the mat, either centered or slightly above center to offset the illusion created when posters are hung above eye level. Many poster frames also come with molding in standard widths. Since posters are large and often brightly colored, just about any width of molding can be used successfully. The color of the molding affects the appearance of the poster, too.