Product Guide

Materials Explained: Kraft, Recycled, and Premium Letterbox Boxes

Kraft, recycled, or premium white? Choose the right letterbox box material for your brand.

3 min readUpdated April 2025

Kraft board

Kraft (brown) board is the natural, unbleached option. It has an authentic, eco-friendly appearance that resonates with environmentally conscious brands. Print on kraft creates a distinctive look with warm, muted colour tones.

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Natural, eco aesthetic that signals sustainability without printing a word
Colours appear darker on kraft than on white board due to the brown base
Cheapest option with no additional bleaching or coating costs

Quick answer

Kraft is cheapest and most eco-looking. Recycled is nearly identical in performance at similar cost. White-lined premium gives the best print quality for vibrant colours. Choose kraft for natural/eco brands, recycled for sustainability claims with standard appearance, and white-lined for premium brands needing accurate colour reproduction. All three are recyclable and available in letterbox sizes.

Recycled board

Most corrugated board contains significant recycled content as standard.

For the strongest sustainability claim, specify 100% post-consumer recycled content.

For letterbox box applications, recycled board performs identically to virgin fibre.

Premium white-lined board

White outer liner provides a smooth, bright surface that accepts print with maximum vibrancy and accuracy. Colours appear exactly as designed, and fine details reproduce sharply. This is the choice for brands where print quality and colour accuracy are essential.

Source responsibly: FSC sourcing guide or recyclability guide.

How to choose

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Kraft for: eco brands, artisan products, single-colour printing, budget-conscious
Recycled for: sustainability claims, standard appearance, CSR reporting needs
White-lined for: premium brands, full-colour printing, colour-critical designs
From ProcuraPack

Letterbox boxes in every material

Kraft, recycled, and premium white-lined letterbox boxes from ProcuraPack.

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Frequently asked questions

Natural brown, unbleached cardboard with an eco aesthetic. Cheapest option.

No, for letterbox applications the performance difference is negligible.

White-lined premium board provides the smoothest surface for vibrant, accurate colour printing.

Yes, but colours appear darker and warmer due to the brown base.

Yes, kraft, recycled, and white-lined are all fully recyclable through kerbside collections.

Related articles

FSC SourcingRecyclabilityCustom PrintingComparing Suppliers

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Product Guide: Letterbox Boxes

Expert guides on letterbox packaging, from sizing and Royal Mail rules to branding and sustainability.

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