Cardboard & Board Grades

Not sure what type of cardboard is best for your product? We’ll help you choose the right grade to protect and showcase your items properly. At Garthwest, we offer bespoke packaging solutions in Yorkshire, designed around your needs.

Picking the right board matters. It affects strength, presentation, cost, and how your packaging performs in-store or in transit. We’re here to make sure you get the best fit for your project.

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What Paper Types and GSMs Are Available?

Despite Kraft and Test liners being so popular, there are in fact a number of other options.

The available paper grades for outer and inner liners when manufacturing cardboard are as follows:

KRAFT (K): Virgin Kraft paper
TEST 2 (T2): Partly recycled liner paper
TEST 3 (T): Fully recycled liner
CHIP (C): Waste based liners
FULLY BLEACHED WHITE (BW): Fully bleached Kraft liner
WHITE TOP (WT): White coated recycled liner
MOTTLED KRAFT (MK): Mottled white Kraft
OYSTER (OY): Mottled test liner
SEMI CHEM (SC): Virgin fibres using neutral sulphite semi-chemical process
WASTE BASED (WB) 100% recycled fibres

Some of the most common paperweights that are used for corrugated material include:

125 GSM
150 GSM
200 GSM
300 GSM

What Are the Different Wall Types?

Alongside paper type and weight, you also need to think about the wall structure. This affects how much strength and protection the board offers.

Single Wall: One fluting between two liners. Ideal for conventional cardboard packaging
Double Wall: Two fluting layers with an extra liner. Stronger and great for heavier items.
Triple Wall: Three fluting sections with added liners. Ideal for large, heavy, or high-value goods.

If you’re shipping large items like industrial equipment or need something robust for your retail display, triple wall board may be the right option.

Our team at Garthwest will help you choose the best type for your product and packaging goals. All options are available with eco friendly cardboard packaging and sourced from FSC® accredited suppliers.

What a superb way to engage guests! The print quality was excellent and it was great to see guests having fun interacting with the standee!

Luzette MarieSenior Events and Marketing Manager, EMEA – The Unruly Group

The Fatherson Bakery branded FSDU’s have gone down really well and allowed us to open up to new retailers. The branding and build quality make them robust and quick and easy to assemble. Thank you to the Garthwest team. As we need new POS, we will surely use you again.

Laurence SmithOwner & MD of Fatherson Bakery Ltd.

Garthwest have been extremely helpful and flexible in designing & producing a product that was right for us and to a very tight deadline, brilliant service!

Costa Coffee Transformation Office Manager

I’ve worked with Lindsay and the team at Garthwest for many years and in this time they delivered a phenomenal service. They are a hugely reliable and trusted POS partner and together we achieved some amazing results. They managed impossible deadlines, brought life to complex, challenging projects, and worked tirelessly to reduce costs and wastage, without lowering standards or quality. If you need a first-class supplier of POS and in-store marketing materials, I would highly recommend that you contact Garthwest.

Steve CogginsSales Director UCA

Garthwest brought our new bespoke coffee bag offering to life by creating a simple yet effective direct mail solution. From the initial brief to the final product, Garthwest provided brilliant customer service and were a pleasure to work with.

UK leading coffee roasting and packing specialist (Marketing team)