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WestonBoxes white opaque TOUGH slim A4 storage box with drop-on lid
WestonBoxes white opaque TOUGH slim A4 storage box — external dimensions diagram
WestonBoxes TOUGH slim A4 storage box open — internal dimensions showing shallow depth
WestonBoxes white opaque TOUGH slim A4 storage box with drop-on lid
WestonBoxes white opaque TOUGH slim A4 storage box — external dimensions diagram
WestonBoxes TOUGH slim A4 storage box open — internal dimensions showing shallow depth

A4 Slim TOUGH Box, Heavy Duty, Impact Resistant Plastic Storage Box

£19.99 - £114.30
£19.99
£19.99 - £114.30
£19.99

Useful for Storing: A4 Paper, Letterheads, Certificates, Presentation Documents, Art Prints, Card Stock, Stationery

External Size: 312 x 225 x 24mm

Internal Size: 304 x 216 x 21mm

Capacity: Up to 150 Sheets Of A4 Paper

Material: Polypropylene [Recyclable]

Colour: White / Opaque
Pack Size: 5 Boxes
Sourcing for a Business or School? Switch to the Trade Store

The A4 TOUGH slim box — designed for schools, offices & busy craft rooms

  • Heavy duty, slim profile: The A4 TOUGH slim box combines the low-profile format of our standard A4 slim box with the high-impact polypropylene construction of the TOUGH range — built for environments where standard polypropylene would be subject to heavier-than-normal handling.
  • Holds up to 150 sheets: Internal dimensions of 304 x 216 x 21mm hold up to 150 sheets of standard A4 paper flat and protected. Ideal for letterheads, presentation documents, certificates, art prints, and card stock where a full-depth box would be unnecessary.
  • Archival safe: Made from acid-free polypropylene — safe for long-term storage of documents, printed media, and paper supplies you want to keep in perfect condition.
  • Clean presentation: The simple base and drop-on lid design has no clips, catches, or hinges. The opaque white finish gives a clean, uniform appearance across multiple boxes on a shelf, desk, or in a print room environment.
  • Made in Britain: Manufactured from recyclable polypropylene at our factory in Sunbury-on-Thames. Available in packs of 5, 10, and 49.

A4 TOUGH slim box — frequently asked questions

What are the dimensions of the WestonBoxes A4 TOUGH slim box and what does it hold?

The A4 TOUGH slim box measures 312 x 225 x 24mm externally and 304 x 216 x 21mm internally. It holds up to 150 sheets of standard A4 paper flat and protected. The slim depth makes it ideal for letterheads, presentation documents, certificates, art prints, and card stock where a full-depth box is not needed.

What is the difference between the A4 TOUGH slim box and the standard A4 slim box?

The dimensions and design are identical — the difference is the material. The TOUGH slim box is made from a high-impact grade of polypropylene that offers significantly improved resistance to knocks, drops, and heavy handling compared to the standard grade. The TOUGH slim box is opaque white; the standard slim box is available in clear transparent and TOUGH white. Choose the TOUGH slim box for demanding environments; choose the standard slim box where transparency matters.

Is the WestonBoxes A4 TOUGH slim box acid-free?

Yes. The A4 TOUGH slim box is made from acid-free polypropylene, which means it will not react with or damage paper, artwork, or printed media stored inside it. Safe for long-term archival storage of documents, letterheads, and presentation materials.

What material is the WestonBoxes A4 TOUGH slim box made from?

The A4 TOUGH slim box is made from high-impact PP5 polypropylene — a chemically inert, recyclable plastic that is acid-free, moisture-resistant, and significantly more robust than standard polypropylene. Opaque white finish. Wipes clean easily.

Where is the WestonBoxes A4 TOUGH slim box made?

The A4 TOUGH slim box is designed, manufactured, and quality-checked at our factory in Sunbury-on-Thames, Surrey. S.B.Weston Ltd has been manufacturing precision injection moulded products in south west London since 1948 — originally from a factory in Teddington, then on Platts Eyot, a small island in the Thames, before moving to our own factory premises in Sunbury-on-Thames in 2002. When you buy a WestonBoxes product, it is genuinely made in Britain — not just branded here.

s.b. weston british plastic injection moulding services since 1948

British Manufacturing Since 1948

WestonBoxes are made by S.B.Weston Ltd — a third-generation family business founded in south west London in 1948. For over 75 years we've been precision injection moulding, supplying partners including Brompton Bikes and The Royal British Legion's Poppy Factory.

Every box you buy is designed, manufactured, and quality-checked at our factory in Sunbury-on-Thames. No outsourcing, no importing — just British-made storage that's built to last.