Post by webecho » Wed May 02, 2018 4:27 pm

I need to add a "Dangerous Goods" extra shipping fee to certain items.

Standard Shipping is $10 - set up as Flat Rate
"Dangerous Goods" items would have an extra $10 added.

The problem is that the "DG" extra fee only applies if only a certain volume
i.e. up to 1 litre is standard price, over 1 litre needs the "DG" fee applied.

What's my best option?
The main problem I've found is that I can't set a specific Shipping Fee for an individual Product, otherwise I'd duplicate the Flat Rate as Dangerous Rate.

Using OC (I know, I know - but the Client doesn't want it upgraded yet)

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Mon Dec 06, 2010 9:17 am

Post by Johnathan » Thu May 03, 2018 1:41 am

Category & Product-Based Shipping would work for this, though it's only compatible with OpenCart 1.5.2 or later. However, I could provide you with an old copy of Product-Based Shipping, which can set a particular shipping rate for certain products, as well as when the volume is over a certain amount.

If you prefer the Dangerous Goods fee just shows up automatically on the order, then what you'd actually want is an Order Total extension. Shipping-Based Fee/Discount can do that, though again I'd have to give you an older version of the extension so it works on OpenCart 1.5.1. It should work the same as Product-Based Shipping, but the fee wouldn't be a choice during checkout, it would just be added to the order automatically when the criteria are met.

If you're interested, feel free to contact me at, and I can send you some screenshots from the older version, so you can see how it works. We can then discuss how you'd need to set it up, and any other questions you have.

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