Royal Mail base their postal charges on size as well as weight, and have recently introduced some new sizes. Ensure you keep your postage costs to a minimum by selecting the most suitable products from our range. Prices for 1st Class & 2nd Class mail are the same no matter where you’re sending in the UK. The amount you pay depends simply on the size and weight of the item you’re sending.
If you click on the pictures below (the grey coloured pics of the envelopes), a page listing all sizes * of mailing bags and postal bags will appear, which will fit within that catergory. Please also bear in mind our manufacturing tolerances and be sure to check the size of the mailing bag you choose.
We recommend you try a sample first which we are happy to provide free of charge
* - Please note there may be some sizes listed which are not suitable
| Format |
Max - Weight |
Max - Length |
Max - Width |
Max - Thickness |
|---|---|---|---|---|
 Letter - Greetings cards, personal letters, postcards |
100g | 24cm | 16.5cm | 5mm |
 Large Letter - A4 documents, CDs/DVDs in their cases, t shirts, large greeting cards with badges and magazines |
750g | 35.3cm | 25cm | 25mm |
|
Small Parcel Deep Option - Shoes, boots, toasters, irons |
2kg
2kg |
45cm
35cm |
35cm
25cm |
8cm
16cm |
 Medium Parcel - Gifts, shoes, heavy or bulky items |
20kg | 61cm | 46cm | 46cm |
Rolled and cylinder shaped parcels
For rolled and cylinder shaped items, the length of the item plus twice the diameter must not exceed 104cm, with the greatest dimension being no more than 90cm. Rolled and cylinder shaped parcels that measure up to 45cm in length and 8cm in diameter and do not exceed 2kg can be sent as small parcels.
Exceptions apply
Parcels that do not exceed 16cm in length and 16cm in width and 16cm in depth can be sent as small parcels, provided the weight does not exceed 2kg. Parcels greater in size than 61cm x 46cm x 46cm or heavier than 20kg can be sent using a dedicated courier network service like Interlink Express services which include tracking on a next day service
You can find more information on the Royal mail website by following the link below:
