To help you identify your mail requirements, we have put together the following guide.
Letter
| Max weight |
Min length |
Max length |
Min height |
Max height |
Max thickness |
| 100gsm |
140mm |
240mm |
90mm |
165mm |
5mm |
| Format |
Service level |
Destination |
Min volume |
Max weight |
| Letter |
3 days |
UK |
200 |
100gsm |
| Letter |
5-7 days |
International |
200 |
100gsm |
Large letter
| Max weight |
Min length |
Max length |
Min height |
Max height |
Max thickness |
| 750gsm |
100mm |
330mm |
90mm |
250mm |
25mm |
| Format |
Service level |
Destination |
Min volume |
Max weight |
| Large letter |
3 days |
UK |
200 |
750gsm |
| Large letter |
5-7 days |
International |
200 |
750gsm |
Can't find what you need? Get in touch with our specialist team below.