Fire rated myRENZ box red
Fire rated myRENZ box red
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First 120 Min Fire Rated Parcel Boxes Delivered To The Market By SLB

First ever 2 hour fire rated parcel boxes

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We are proud and excited to announce that our 2-hour fire rated mailbox range has now been joined by our intelligent parcelboxes, myRENZbox.

This is no mean feat – all have been fully tested in extreme conditions at Warrington Fire Research Laboratory; this test includes our products being recessed within a wall backed into a furnace reaching temperatures more than 1030 degrees C.

They need to withhold their integrity and therefore not distort, not release any gaps, ignite nor spread a flame.

We can safely say that they are all able to contain or hold back a fire for 2 hours and are tested in accordance to BS EN 1363-1 – 2020. They can be positioned on a wall, in a wall, through a wall or located freestanding, in accordance with installation guidance.

Alison Orrells, CEO and MD of The Safety Letterbox Company said;

“This is another very important result for SLB and the market, providing the maximum fire protection, if required, on any development. Following much investment and product development we have a range of both mailboxes and now intelligent parcelboxes to satisfy any site location arrangement, all with absolute reassurance that full testing has been done and our manufacturing is strictly in accordance with such rigorous testing in ISO9001 conditions.  I am incredibly proud of our team who work so skilfully to create ingenuity in the world of mail and parcel delivery.”


The first fire rated mailboxes were developed by SLB in 2002, since then we have developed and expanded the range to ensure the market had the products it needs to be future proofed.

For full details and advice on our Fire Rated mail and parcel box solutions and to ensure we are all ‘building a safer future’, then fill out the form below or visit our website page to find out more information

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No-obligation consultation

We welcome the chance to discuss your project and we can share all that is current in terms of standards and product options totally free of charge.

Simply complete and submit the form and we will get back in touch to talk through your requirements.

We also provide Autocad drawings as required – it’s all part of the service!

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