Fully customisable

FSC certified

Custom sizing

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Crash Lock Box

Crash lock boxes are one of the quickest types of packaging to assemble. This makes them ideal for packing high volumes by hand and rapid fulfilment, saving time and reducing costs in the process. Often used by e-commerce stores as an alternative to a mailer box.

  • FSC certified
  • Custom printing
  • Custom sizing
  • Rapid fulfilment

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Key features

Specification

Materials
  1. F0

    FEFCO 0713

    FEFCO 0713 is a pre-glued box made from one piece of board which is commonly used to improve packing efficiency. Shipped flat and ready to use on arrival.
  2. Bk

    Brown kraft liner

    FSC certified, unbleached and uncoated liner paper made from virgin pulp. Brown kraft liner is a sustainable material that still provides high print performance.
  3. Wk

    White kraft liner

    FSC certified, bleached liner paper made from virgin pulp. White kraft liner is a good option for printing bold colours without choosing a coated paper.
  4. 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.
  5. Bt

    Brown testliner

    FSC certified paper made from 100% recycled fibres, brown testliner is a cost-effective paper often used on non-printed boxes. Testliner can be printed on but we recommend kraft liners for the best print performance.
  6. Wt

    White testliner

    FSC certified paper made from 100% recycled fibres, white testliner is a cost-effective paper. It's used on non-printed sides of certain crash lock mailers, which reduces the carbon footprint and cost of your box. We don’t recommend this paper for printing.

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.

All Sourceful crash lock boxes can be FSC Mix certified.

Vetted suppliers

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

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Quality control

Every order from our suppliers undergoes a quality inspection process before it’s shipped. Any order 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.

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