on 31-08-2012 03:21 PM
Weigh it with whatever packaging you are going to use. Then use the Royal Mail postage calculator.
Postage is capped at £2.25 in this category.
If you calculate the postage to be more then you will have to add the extra to the item price before you list.
on 31-08-2012 03:22 PM
Weigh it with packaging and check price here
You should be able to pack it safely to go as large letter.