Top 7 Medium Boxes For Posting UK – Packing Materials

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1. All-Pack Solutions


10 New Royal Mail Small Parcel Postal mailing Boxes Maximum Size of 350x250x160mm

All-Pack Solutions #ad - Dimensions length / width / depth: 350mm x 250mm x 160mm / 13.7" x 9. 8" x 6. 2" / 35cm x 25cm x 16cm. This product is manufactured to high standards in the uk exclusively for All-Pack Solutions Ltd and is not supplied to any other re-seller. Colour: Brown. Quantity: 10 Type: single Wall. Should you purchase this item from another seller, it will not be those manufactured for ourselves, and is likely to be a substandard inferior item.
BrandAll-Pack Solutions #ad
ManufacturerAll-Pack Solutions Ltd #ad
Part NumberSWB-RM6-10

2. Triplast


Triplast 457 x 305 x 254mm Medium Single Wall 18x12x10" Shipping Mailing Postal A3 Cardboard Boxes Pack of 5

Triplast #ad - Triplast corrugated Single Wall Cardboard. 5 flat packed Boxes. Model number: tplbx5singL18X12X1018x12x10" 457x305x254mm.
BrandTriplast #ad
ManufacturerTriplast #ad
Height25.4 cm (10 Inches)
Length30.5 cm (12.01 Inches)
Width45.7 cm (17.99 Inches)
Part NumberTPLBX5SINGL18X12X10



10 x 12x9x6" A4 Medium Size Cardboard Packaging Boxes, Royal Mail Small Parcel Size

iDEALS UK PACKAGING LTD #ad - Flat pack single wall boxes a4 size 12x9x6" A4 Size Base, 6" High. High Quality. Pack size: 10 boxes - savings on MULTIBUY! Ideal for office Supplies & Home Use.
Height15.2 cm (5.98 Inches)
Length30.5 cm (12.01 Inches)
Width22.9 cm (9.02 Inches)
Part NumberBSWP_1296



A3, Medium Parcel Double Wall 18x12x12"" Shipping Mailing Postal Brown Heavy Duty Cardboard Boxes 1, AKAR 457 x 305 x 305mm

AKAR #ad - Ideal for posting or packaging. Double wall medium Heavy Duty Postal Boxes. 100% recyclable. They can be used in an office to archive items or sending products via a courier service. Size - a3 - 18x12x12" inches 457x305x305 mm. These cartons are delivered flat and are easy to assemble.
BrandAKAR #ad
ManufacturerAKAR #ad
Part NumberAKAR-DW-18x12x12

5. SmithPackaging


SmithPackaging Double Wall Cardboard Shipping Boxes 381x254x254mm 15x10x10" Pack of 20 Cartons

SmithPackaging #ad - Made from robust recycled paper and is 100% recyclable. Durable and cost effective solution to mailing or storing fragile products. Each box has internal dimensions of 381x254x254mm 15x10x10inches. Pack of 20 flat packed Heavy Duty Double Wall Cardboard Boxes. Ideal for protecting items from impact when posting.
BrandSmithPackaging #ad
ManufacturerSmithPackaging #ad



ZYBUX, 305 x 229 x 152mm, 12x9x6" Medium Single Wall Shipping Mailing Postal Cardboard Boxes Pack of 25

ZYBUX #ad - Corrugated Single Wall Cardboard. Shipping mailing Postal Cardboard Boxes. 25 flat packed Boxes. 12x9x6" 305x229x152mm.
BrandZYBUX #ad
ManufacturerZYBUX #ad



KAPCO 10 X Strong Double Wall Cardboard Boxes 18x12x12 Inches

KAPCO #ad - 10 x boxes will arrive flat packed and bundled for easy storage. The moving box large are double wall making them extra strong and sturdy. The large storage box size is appr : 18 x 12 x 12 inches 457 x 305 x 305 mm. The corrugated cardboard boxes are manufactured in the UK. The cardboard storage box is Ideal for moving house, office storage, parcel packaging, removals etc.
BrandKAPCO #ad
ManufacturerKAP Enterprise LTD #ad
Part NumberDWLCDB 10