Archival Methods Onyx Portfolio Box 20x24x2 inch Black White

Archival Storage for 20x24 Prints

The Onyx Portfolio Box is built for photographers and artists who need to store and present 20x24 inch work. Its Kappa binder's board core contains no glue between layers, and the interior is lined with 80 lb acid- and lignin-free paper. The box has passed the Photographic Activity Test, confirming it will not degrade sensitive materials over time.

Protection Under Regular Handling

A library-quality F-Grade Buckram cover with a moisture-resistant aqueous acrylic coating shields the contents from everyday wear. The pH-balanced adhesive has a sulfur content below .0008 percent, and the reinforced hinge plus close-tolerance construction keep dust out during repeated opening and closing. The lid folds flat for stable, long-term access.

Upgrade from Basic Sleeves or Loose Storage

This box replaces simple plastic sleeves, cardboard folders, or unstructured stacking that leave prints exposed to dust, humidity, and physical damage. The jump is worth it when work must be both archived safely and shown professionally, as the hinged design lets the box serve as a presentation stage with a clean white background. It is not suited for buyers who need to store prints larger than 20x24 inches or who require a sealed, climate-controlled environment.