Document portfolio Centrum A3 folder 25 mm spine, assorted colors

Centrum A3 document portfolio folder with a 25 mm spine is designed to store and transport A3-size papers and documents in a flat, organised manner. Supplied in assorted colours, the folder accommodates multiple loose sheets, drawings, reports and presentations while protecting them from folds and surface damage. The slim 25 mm spine provides a compact profile that fits on shelves and in bags, making it suitable for everyday office, school or home use.

Advantages

The portfolio offers lightweight construction for easy handling and carrying, with a 25 mm spine that balances capacity and compactness. Assorted colours allow visual organisation and quick identification of different projects or subjects. The flat storage format minimises creasing and keeps sheets accessible without the need for additional fasteners. Materials used provide basic protection against dust and superficial wear during transport.

Suitable for

• Storing and transporting A3 drawings and sketches
• Keeping loose presentation pages and reports flat
• Organising school projects, portfolios and assignments
• Protecting posters, diagrams and large-format prints

Key specifications

• Format compatibility: A3 paper size
• Spine width: 25 mm for moderate capacity
• Colour: assorted (multiple colours in supply)
• Storage style: flat portfolio for loose sheets
• Typical use environments: office, school, home

How to use

Insert A3 sheets and documents into the main compartment, arranging them flat to avoid bending. Close the portfolio to keep pages aligned and to reduce movement during transport. For easier identification, use different coloured portfolios for separate projects or subjects. Handle the folder by its edges or carry it inside a bag to reduce exposure to moisture and abrasion.

Usage recommendations

Store the portfolio upright on a shelf or inside a protective bag when carrying multiple items. Avoid overfilling beyond the 25 mm spine capacity to prevent distortion of the folder and of the stored documents. For long-term storage of sensitive prints or technical drawings, combine flat storage with acid-free interleaving sheets.