Cost of making a Raised bed? - Recommendations

Scaffolding planks are around 11-20 euro each depending on condition. Top soil prices depend on the quantity you are getting, and beware of some pure rubbish... infertile, full of rocks etc.

Here's a link for some in dublin.
https://www.howbertandmays.ie/accessories/screened-topsoil-dublin

Where did you get them for 3.50? Back of a lorry? :0) That ad is nearly 2 years old...

Honestly, I'd love to get some cheaper, and I've been looking for about 2 months, but there's nothing around here for less than 11 at the moment.... and those are in bits. Maybe up near dublin alright you'd get them for less! Good luck.