Listings most commonly specify acrylic glazing or polished plexiglass fronts. Some listings call out UV-resistant acrylic glazing for added protection against fading.
Common backings are acid-free foam board and a sturdy backboard to keep artwork secure and protected.
Most frames support horizontal or vertical display and commonly include hanging hardware or sawtooth hangers for wall mounting.
Many listings accept a 26×32 photo without a mat. When a mat is included, some listings indicate they accept a 22×28 image (with a few noting an actual mat opening of about 21.5×27.5 inches).
Molding options range from slim/gallery-style profiles to medium and wide moldings. Some listings specify exact widths (for example, a 1.1-inch border on certain frames).
Frames typically use bendable tabs, turn buttons, or turn points on the back to allow easy removal and replacement of artwork.