£12.39

1000 Micron SRA3 Greyboard Backing Board

1mm Thick and SRA3 Sized – Back It Like You Mean It.

When your project needs a bit more substance, our 1000 micron (1mm) SRA3 greyboard delivers. At 320mm x 450mm, it’s great for backing larger prints, building strong folders, separating display panels or making packaging prototypes that hold their own. Made from 100% recycled fibre and uncoated for glue-friendliness, it’s strong, flat and gets the job done.

Price includes VAT and UK delivery—no surprise fees, just dependable board delivered fast.

Why Choose Our SRA3 1000 Micron Greyboard?

• 1000 micron (1mm) – a solid mid-weight option
• SRA3 size: 320mm x 450mm
• Made from 100% recycled greyboard
• Uncoated – easy to glue, cut, mount or score
• Perfect for crafts, packaging, folders, dividers, and print support
• Includes VAT and UK delivery

Need a Custom Size?

We’re not stuck on standard. Send us your measurements and we’ll see what we can do.

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Other Options in the SRA3 Range

• Lighter feel? Try 750 micron SRA3
• Need more support? Go for 1250 micron SRA3
• See all greyboard products

Specs at a Glance

• Material: 100% recycled greyboard
• Finish: Uncoated
• Thickness: 1000 micron (1mm)
• Size: SRA3 (320mm x 450mm)
• Available in multiple pack sizes
• Includes VAT and UK delivery

Frequently Asked Questions

What’s SRA3 good for?

It’s perfect for printers, crafters and packaging designers who need a little more surface area than standard A3.

How stiff is 1000 micron?

At 1mm thick, it’s rigid enough for reliable support but still manageable to cut by hand.

Can I order a small pack to test?

Yes! We offer smaller quantities if you want to try it before committing.

Can I cut this with a knife?

Definitely. A sharp blade and metal ruler will do the job. Or use a guillotine for precision.

Do you do custom sizing?

We do – send us your preferred size and we’ll let you know what’s possible.