envelope sorter

Common materials include fiberboard, MDF (medium-density fiberboard), acrylic, bamboo, steel, and various plastics.

Capacity varies by product. Some listings specify compartment capacities such as up to 500 sheets of A4 paper, and some shelves are rated to support around 22 lbs (10 kg). Check the product page for exact sheet- or weight-capacity for the model you’re considering.

Assembly ranges from none to simple setup. Several models require no assembly, others advertise quick or easy assembly, and at least one model notes adult assembly is required with tools not provided.

See-through and open designs help you spot contents quickly, such as clear or translucent acrylic and plastic trays, mesh letter trays, and open-top wall pockets that expose stored items.

Quick-access features include wide side openings on letter trays, open-top wall pockets for fast retrieval, and drawers or easy-pull handles for smooth removal.

Tabletop designs include flat letter trays, wooden desktop units, and drawer-style organizers. Wall-mounted options are typically open-top wall pockets or slim vertical holders intended to be hung for mounted document storage.