postal boxes * mailing carton * boxes for mailing * cardboard postal boxes * flat mailing boxes
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Our complete range of White Postal Boxes fall within the Royal Mail's 'Large Letter' and 'Small Parcel' size restrictions. Click here for more details.

See our whole range of

White Postal Boxes / Cartons - Flat

Our white postal boxes are another mailing solution in our range. Made from a sturdy cardboard, these white mailing carton have triple thickness sides for extra strength and protection for your contents. They are sold in packs of 25, delivered flat and available in 4 sizes.
Cleverly designed, they have a self-locking feature which allows you to close them without using a tape or glue – unless of course if you need it to be securely sealed. It is suitable to use for a wide range of items, including retail - thanks to their professional finish!

We now hold in stock one size suitable to send as a Large Letter (LGB1), and the further three sizes are within Royal Mail's 'Small Parcel' size restrictions saving you more!

Code LGB1
Size 330 x 234 x 19mm (13 x 9.25 x 0.75ins)
Pack Qty 25
Our Price
9.50 GBP / Pack ex VAT

11.40 GBP / Pack inc VAT
Packs ex VAT inc VAT
Buy 1 + 9.50 GBP / Pack 11.40 GBP / Pack
Buy 2 + 9.00 GBP / Pack 10.80 GBP / Pack
Buy 4 + 6.50 GBP / Pack 7.80 GBP / Pack
Buy 8 + 5.75 GBP / Pack 6.90 GBP / Pack
Buy 16 + 5.50 GBP / Pack 6.60 GBP / Pack
Code LGB2
Size 153 x 127 x 51mm (6 x 5 x 2ins)
Pack Qty 25
Our Price
12.25 GBP / Pack ex VAT

14.70 GBP / Pack inc VAT
Packs ex VAT inc VAT
Buy 1 + 12.25 GBP / Pack 14.70 GBP / Pack
Buy 2 + 11.25 GBP / Pack 13.50 GBP / Pack
Buy 4 + 10.00 GBP / Pack 12.00 GBP / Pack
Buy 8 + 9.75 GBP / Pack 11.70 GBP / Pack
Code LGB4
Size 225 x 150 x 75mm (9 x 6 x 3ins)
Pack Qty 25
Our Price
15.25 GBP / Pack ex VAT

18.30 GBP / Pack inc VAT
Packs ex VAT inc VAT
Buy 1 + 15.25 GBP / Pack 18.30 GBP / Pack
Buy 2 + 14.50 GBP / Pack 17.40 GBP / Pack
Buy 4 + 13.25 GBP / Pack 15.90 GBP / Pack
Buy 8 + 12.75 GBP / Pack 15.30 GBP / Pack
Code LGB6
Size 360 x 280 x 72mm (14 x 11 x 3ins)
Pack Qty 25
Our Price
29.75 GBP / Pack ex VAT

35.70 GBP / Pack inc VAT
Packs ex VAT inc VAT
Buy 1 + 29.75 GBP / Pack 35.70 GBP / Pack
Buy 2 + 26.25 GBP / Pack 31.50 GBP / Pack
Buy 4 + 23.50 GBP / Pack 28.20 GBP / Pack
Buy 8 + 23.25 GBP / Pack 27.90 GBP / Pack
Cardboard mailing boxes are an ideal packaging and postal solution because of its strength and versatility. These white boxes for mailing are made from strong and sturdy cardboard to cater to a wide variety of items, including fragile ones. If you feel you need extra protection look at our range of lightweight void fill.
The triple thickness sides of our white mailing boxes reinforce the postal protection it provides its contents. The postal carton is easily assembled by hand, and the tuck-ins at the front give a neat, efficient closure.  There is no need for tape or glue, unless you wanted to add a little tape for that extra security.
You can easily write on the surface of the box with a marker pen, or stick on a label. Should you wish to customise your mailing box, then give us a call at the number below or click here to fill in our form and enter an 0427 as the box style. Alternatively another option is to customise adhesive tape which we can also arrange for you.
Our white postal box is one of a range of mailing solutions. Another option is our range of
brown cardboard postal boxes, which are available in three sizes.

Telephone us on 01707 635353

Monday - Friday 9:00am to 5:00pm

Packaging2Buy Ltd, Frobisher Way, Hatfield Business Park, Hatfield, Hertfordshire AL10 9TY
Servicing the UK, Ireland and other offshore islands