Extra flat brown postal boxes

From  £0.18 ex. VAT 0.18

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In stock
  • Fits Royal Mail post boxes & household letter boxes
  • Economise on your postal costs
  • Manufactured in micro-flute board
  • Delivered flat packed for easy assembly
  • Sold in packs of 50, priced per box
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length mm
width mm
height mm
pack quantity
£ per boxQuantity  
10% off15% off20% off25% off
50 +100 +200 +500 +1000 +
1409020brown50 0.24 0.21 0.20 0.19 0.18
16512020brown50 0.30 0.26 0.25 0.23 0.22
22515020brown50 0.33 0.29 0.27 0.26 0.24
25516020brown50 0.33 0.29 0.27 0.26 0.24
30522020brown50 0.35 0.31 0.29 0.27 0.26
Detailed description

Extra flat boxes ideal for posting products up to 20 mm thick

Especially formatted to fit standard Royal Mail post boxes and household letter boxes these extra flat postal boxes have been manufactured in micro-flute.

These boxes allow you to send your small volume and flat products whilst economising on your postal costs. Also available in white a finish.

Delivered flat packed for easy assembly. All dimensions are internal mm.

To find the right box for your products, call us on 0800 542 44 28, talk to our packaging specialists and get next day delivery.

QuantityAvailable in packs of 50 boxes. Want to order in bulk? See our discounts for 2 or more packs.

Size and shape optionsThese extra flat cardboard postal boxes start at 140x90mm (LxW) and go up to 305x220 mm (LxW). All height measurements are 20mm.

Weights and limits These boxes provide ideal protection for light and flat products.

Materials Manufactured from microflute.

Delivery information Delivered flat-packed in packs of 50.
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