£12.39

1000 Micron A3 Greyboard Backing Board

A3 Size, 1mm Thick, Built for Backing Bigger Things.

Need something firmer than 750 micron? This 1000 micron (1mm) A3 greyboard strikes the perfect balance between strength and flexibility. Cut to 297mm x 420mm and made from 100% recycled fibre, it’s ideal for packaging prototypes, display work, print mounting or anything that needs to stand up straight and stay that way.

The board is uncoated for easy adhesion and trimming, and as always, the price you see includes VAT and UK delivery. No hidden extras. No checkout drama.

Why Choose Our A3 1000 Micron Greyboard?

• 1000 micron (1mm) – strong but still flexible enough to work with
• A3 size: 297mm x 420mm
• Made from 100% recycled greyboard
• Uncoated – glue, score, tape or mount with ease
• Great for packaging, crafts, folders, display backers and rigid inserts
• Includes VAT and UK delivery

Need Custom Sizes?

We can cut greyboard to suit your specs. Send us your measurements and we’ll get back to you with options.

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Looking for Something Different?

• Try 750 micron A3 if you need more flexibility
• Need extra strength? Go for the 1250 micron version
• Browse our full greyboard range

Specs at a Glance

• Material: 100% recycled greyboard
• Finish: Uncoated
• Thickness: 1000 micron (1mm)
• Size: A3 (297mm x 420mm)
• Available in multiple pack sizes
• Includes VAT and UK delivery

Frequently Asked Questions

What’s this greyboard best for?

It’s a great all-rounder—used for backing prints, packaging trials, stiffening folders and plenty of crafty things in between.

Can I cut it with a knife?

Yes – a sharp blade and a steady hand will do the job. A guillotine works well for batch cuts too.

Is it suitable for glue and mounting?

Definitely. The uncoated finish makes it great for adhesives of all kinds.

Do you offer smaller quantities?

We do. Order a test pack if you'd like to try it before buying in bulk.

Can you supply custom sizes?

Yes – contact us with your preferred size and we’ll see what we can do.