Weights and shipping not adding up?

[TillyOak]

I know this is likely going to sound like a silly question, but here goes ...

 

I've set up shipping rates according to Royal Mail's charges, and they are based on weights - so it's 0-100g, 101g to 250g, etc, etc (grams have been entered as 0-0.100, 0.101-0.250 etc

 

However, in the shipping tables for the heavier international items I have: 

1.26kg-1.5kg @ £££

1.51kg-1.75kg @ £££

1.76kg-2kg @ £££

 

Now so far so good - until I have a book weighing in at 1.5Kg which then shows up as charging the customer the amount under the table 1.65kg-2kg which is what I don't understand.   I've checked the postage cost's in the shipping configs and everything is set up right, I even deleted the shipping configs and started again, same thing.   If I change the product item from 1.5kg to 1.4kg, it charges the correct postage for between those weights, it's just when I seem to go over 1.5kg it has an issue!

Anyone else had this and am I missing something here???

Cheers

Mark

[Dave L]

The shipping is set up on an inclusive/exclusive basis. You have gaps in your shipping tables.

 

Should be:

1.26kg-1.5kg @ £££

1.5kg-1.75kg @ £££

1.75kg-2kg @ £££

 

It's from 1.5 up to and including 1.75 and then from but excluding 1.75 up to and including 2kg etc.

[TillyOak]

Thank for that Dave, I feel a little dense now to be honest for not having thought of that one, just amended shipping cost's and it is reflecting a better return, it does however set the price at the next level, for example 1.25kg-1.5kg is £9.75 then 1.5kg-1.75kg is £11.10 so it's charging £11.10 even though up to 1.5kg should really be £9.75 but it's a better result no matter how we look at it and the example I used for one of our books is bang on 1.5kg, doubt I have another book or collection of books in my inventory that will be bang on a threshold so yeh, cheers for that

Mark

[Dave L]

Thank for that Dave, I feel a little dense now to be honest for not having thought of that one, just amended shipping cost's and it is reflecting a better return, it does however set the price at the next level, for example 1.25kg-1.5kg is £9.75 then 1.5kg-1.75kg is £11.10 so it's charging £11.10 even though up to 1.5kg should really be £9.75 but it's a better result no matter how we look at it and the example I used for one of our books is bang on 1.5kg, doubt I have another book or collection of books in my inventory that will be bang on a threshold so yeh, cheers for that

Mark

 

Don't need to feel bad, Prestashop shipping has never been easy to get to grips with but once you understand how they work you are good to go.