Cardboard Boxes

Extra Heavy Duty Cardboard Boxes

  • Strong & sturdy extra heavy duty boxes for heavy items

  • Popular alternative to double wall boxes

  • Ideal for exporting heavy and extra fragile items

  • Maximum load, Edge Crush Test and Box Compression

Showing 1 - 12 of 18 results
11.4 x 11.4 x 10.0 inch Double Wall Cardboard Boxes (SR6)
£10.92
Internal Dimension:28.7 x 28.7 x 21.3 cmExternal Dimension:29.0 x 29.0 x 25.5 cm
Internal Dimension:28.7 x 28.7 x 21.3 cmExternal Dimension:29.0 x 29.0 x 25.5 cm
11.4 x 6.9 x 9.8 inch Double Wall Cardboard Boxes (SR9)
£8.52
Internal Dimension:28.0 x 16.5 x 24.0 cmExternal Dimension:29.0 x 17.5 x 25.0 cm
Internal Dimension:28.0 x 16.5 x 24.0 cmExternal Dimension:29.0 x 17.5 x 25.0 cm
12.9 x 11.7 x 10.2 inch Double Wall Cardboard Boxes (SR6 Plus)
£11.52
Internal Dimension:31.8 x 28.8 x 25.0 cmExternal Dimension:32.8 x 29.8 x 26.0 cm
Internal Dimension:31.8 x 28.8 x 25.0 cmExternal Dimension:32.8 x 29.8 x 26.0 cm
16.2 x 12.3 x 10.0 inch Double Wall Cardboard Boxes (SR1)
£12.72
Internal Dimension:40.0 x 30.0 x 23.5 cmExternal Dimension:41.2 x 31.4 x 25.5 cm
Internal Dimension:40.0 x 30.0 x 23.5 cmExternal Dimension:41.2 x 31.4 x 25.5 cm
17.1 x 12.8 x 10.0 inch Double Wall Cardboard Boxes (SR2)
£14.28
Internal Dimension:42.3 x 30.8 x 22.5 cmExternal Dimension:43.5 x 32.2 x 25.5 cm 
Internal Dimension:42.3 x 30.8 x 22.5 cmExternal Dimension:43.5 x 32.2 x 25.5 cm 
17.8 x 12.8 x 10.5 inch Double Wall Cardboard Boxes (SR3)
£14.76
Internal Dimension:44.3 x 31.3x 24.2 cmExternal Dimension:45.2 x 32.5 x 26.7cm 
Internal Dimension:44.3 x 31.3x 24.2 cmExternal Dimension:45.2 x 32.5 x 26.7cm 
19.3 x 13.0 x 11.0 inch Double Wall Cardboard Boxes (SR4)
£16.56
Internal Dimension:48.0 x 32.0 x 25.0 cmExternal Dimension:49.0 x 33 .0 x 28.0 cm
Internal Dimension:48.0 x 32.0 x 25.0 cmExternal Dimension:49.0 x 33 .0 x 28.0 cm
6.9 x 5.9 x 9.8 inch Double Wall Cardboard Boxes (SR10)
£7.56
Internal Dimension:16.5 x 14.0 x 24.0 cmExternal Dimension:17.5 x 15.0 x 25.0 cm
Internal Dimension:16.5 x 14.0 x 24.0 cmExternal Dimension:17.5 x 15.0 x 25.0 cm
C4/A4 Royal Mail Large Letter PiP Cardboard Boxes
£19.00 £21.00
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP) large letter boxes are designed to provide maximum protection for your products, whilst helping you save postal costs through the benefit of sending your parcels out as “large letter” and avoiding small parcel rates under Royal Mail’s PiP guideline. The boxes are quick and easy to assemble in addition to being lightweight and durable. The boxes come with pre-defined creases that you can simply fold along, lock them into place using the tabs before securing it with tape.   C4/A4 sized PiP box measures at: Internal: 320mm x 230mm x 21mm (L x W x H)   Maximum Dimension and Weight on Large Letter Service Max Weight: 750g Max Length: 35.3cm Max Width: 25cm Max Depth: 2.5cm Ideal for: Laptop Keyboards, Beads, T Shirts, A4 Sized Magazines, or for extra protection of fragile items....
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP)...
C5/A5 Royal Mail Large Letter PiP Cardboard Boxes
£17.00 £18.00
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP) large letter boxes are designed to provide maximum protection for your products, whilst helping you save postal costs through the benefit of sending your parcels out as “large letter” and avoiding small parcel rates under Royal Mail’s PiP guideline. The boxes are quick and easy to assemble in addition to being lightweight and durable. The boxes come with pre-defined creases that you can simply fold along, lock them into place using the tabs before securing it with tape.     C5/A5 sized PiP box measures at: Internal: 225mm x 160mm x 20mm (L x W x H)   Maximum Dimension and Weight on Large Letter Service Max Weight: 750g Max Length: 35.3cm Max Width: 25cm Max Depth: 2.5cm   Ideal for: CD’s, DVD’s, certificates, small book and other A5 sized items. Packaging details: Boxes...
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP) large...
C6/A6 Royal Mail Large Letter PiP Cardboard Boxes
£13.00 £14.00
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP) large letter boxes are designed to provide maximum protection for your products, whilst helping you save postal costs through the benefit of sending your parcels out as “large letter” and avoiding small parcel rates under Royal Mail’s PiP guideline. The boxes are quick and easy to assemble in addition to being lightweight and durable. The boxes come with pre-defined creases that you can simply fold along, lock them into place using the tabs before securing it with tape.    C6/A6 sized PiP box measures at: Internal: 160mm x 110mm x 20mm (L x W x D)   Maximum Dimension and Weight on Large Letter Service Max Weight: 750g Max Length: 35.3cm Max Width: 25cm Max Depth: 2.5cm   Ideal for: A6 sized items, Jewellery, small books, mini notebooks Packaging details: Boxes come in flat...
Our new range of cardboard boxes, manufactured from single wall 125K&K E Flute corrugated board, the Pricing in Proportion (PiP)...
Deep Parcel Royal Mail Small Parcel PiP Cardboard Boxes
£34.00 £35.00
Our new range of small parcel boxes, manufactured from single wall 125K&T B Flute corrugated board, the Pricing in Proportion (PiP) small parcel boxes are designed to provide maximum protection for your products, whilst helping you save postal costs through the benefit of sending your parcels out as “small parcel” and avoiding medium rates under Royal Mail’s PiP guideline. The boxes are quick and easy to assemble in addition to being lightweight and durable. The boxes come with pre-defined creases that you can simply fold along, lock them into place using the tabs before securing it with tape. Deep sized PiP Boxes measures at: Internal: 304mm x 234mm x 143mm (L x W x D)  FEFCO Style: 0470 Maximum Dimension and Weight of Small Parcels Max Weight:  2kg Max Length: 45cm Max Width: 35cm Max Depth: 16cm Packaging details: Boxes come in flat packs of 25 for easy storage and delivery. For more information on PiP Boxes,...
Our new range of small parcel boxes, manufactured from single wall 125K&T B Flute corrugated board, the Pricing in Proportion...