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Fully customisable

Custom sizing

Floating 3D model of three brown custom inserts.
Floating 3D model of four green custom inserts.
Floating 3D model of four dark blue custom inserts.
Floating 3D model of three blue custom inserts.
Floating 3D model of three pink custom inserts.
Floating 3D render of three custom inserts and a mailer box.

Custom Box Inserts

Minimum order quantity: 5000

Secure, protect and showcase your product with corrugated custom box inserts. Can be die-cut to fit multiple products or components, and after use, they’re roadside recyclable. Pair with a Sourceful mailer box.

  • Custom sizing
  • Digital Print Full Colour CMYK

From £0.06 / unit

Request quote

Have questions? Contact us

Key features

Specification

Materials
  1. Bk

    Brown kraft liner

    FSC certified, unbleached and uncoated liner paper made from virgin pulp. Brown kraft liner is the most sustainable material for printing on an insert. We recommend this liner paper if you choose to print on brown paper.
  2. Wc

    White coated liner

    FSC certified, bleached liner paper made from recycled and virgin pulp. It’s then coated with kaolin clay to create a smooth surface for printing. White coated liner offers the best print performance. We recommend this liner paper if you choose to print on white paper.
  3. Bt

    Brown testliner

    FSC certified paper made from 100% recycled fibres, brown testliner is a cost-effective paper used on most non-printed dividers. We recommend this liner paper for any non-printed side of your insert. This reduces its carbon footprint and cost.
  4. Wt

    White testliner

    FSC certified and made from 100% recycled fibres, white testliner is a cost-effective paper used on white non-printed dividers. We recommend this liner paper for any non-printed side of your insert. This reduces its carbon footprint and cost.
  5. E

    E-flute

    E-Flute (1.5-2.0mm) is used for all Sourceful custom inserts unless your product requires extra protection. It has great crush resistance for its weight, provides a flat surface for printing and is easy to fold.
  6. Vi

    Vegetable-based inks

    Made with vegetable oils as their primary base, these inks are designed for high-quality offset printing. More sustainable than solvent-based inks.
  7. Ws

    Water-based sealant

    Applied to every printed side of an insert. This is a standard part of the offset printing process to ensure colour consistency and avoid scuffing. Does not impact the recyclability of the box.
  8. Uv

    UV varnish

    Used to highlight printed features or create a high gloss, professional finish over an entire print area. UV varnish also protects colours and reduces the risk of colours running when wet. Inserts with a UV varnish are widely recyclable.

Supply chain assurance

A resilient, responsible supply chain

Certifications

We validate all supplier claims and third-party certifications such as ISO, BRC and FSC. And we ensure suppliers adhere to UK and EU laws on chemicals and product components, like UK REACH. This allows businesses to confidently buy high-quality products that align with a net-zero trajectory.

Look for our FSC® certified products.

Vetted suppliers

We vet every supplier we work with. For RFQ products, we do this through site visits and rigorous product testing.

Learn more

Quality control

Every lot from our suppliers undergoes a quality inspection process before it’s shipped. Any lot that fails quality inspection is returned to the manufacturer or reproduced.

For orders manufactured internationally (outside the UK), we follow the Acceptable Quality Limit (AQL) method defined by ISO 2859 - 1.

For orders manufactured domestically (inside the UK), our suppliers perform the quality inspection process which we then verify through spot checks throughout the year.

Learn more

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