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A3 Storage Boxes

A3 storage boxes are ideal for organising and protecting large documents, craft supplies, art materials, and schoolwork. Designed to fit A3 paper perfectly, these sturdy plastic or cardboard boxes offer spacious, dust-free storage with secure lids or snap closures. Whether used at home, in the office, or a classroom, A3 organiser boxes keep your items neat, accessible, and damage-free—making them essential for artists, students, and professionals alike.

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Viewing 1 - 4 of 4 Products

Viewing 1 - 4 of 4 Products

Seawhite Cardboard Storage Box A3

Seawhite Cardboard Storage Box A3

Trending now

Seawhite Cardboard Storage Box A3

Is £5.50

Black Archival Box A3

Black Archival Box A3

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Black Archival Box A3

Is £17.00

Only 2 left

Ultra-Thin A3 LED Light Box

Ultra-Thin A3 LED Light Box

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Ultra-Thin A3 LED Light Box

Is £95.00

Seawhite Black Professional Archival Slim Box A3

Seawhite Black Professional Archival Slim Box A3

Trending now

Seawhite Black Professional Archival Slim Box A3

Is £14.00

You've viewed 4 of 4 products

FAQs About A3 Storage Boxes

Ideal for art prints, portfolios, paper pads, large templates or craft materials that fit A3 format.

Corrugated board, acid-free cardboard or rigid polypropylene offer high strength and longevity.

Many are stackable with reinforced lids to maintain shape and alignment.

Include writable label areas or windows-use archival labels on art storage to prevent damage.

Some models are foldable for off-season storage. Ensure robust corners so folding doesn’t weaken structure.

Use depth of 5–12 cm for flat storage. For thicker art kits or 3D materials, choose deeper boxes (15–20 cm).

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