Where can I get 190mm hollow blocks

[paraic]

Hi Guys,
I'm building a retaining wall and I've just run out of blocks....
The blocks I'm using are hollow 390mm x 190mm x 190mm and I'm finding it very hard to source some more. There doesn't seem to be a problem getting the 215mm block but I'm afraid that they are no good to me as I need to add to existing courses. The company I got them from has ceased trading... I've tried all the builders providers in the Aberdeen area with no luck.
Does anyone know where I can get approx 120 blocks - this will finish the first section. But I'll need another 250 or so for the second section - but these can be the bigger (easier to get) size.
Thanks in advance
Paraic

 

[RedHerring2]

Would it matter if they corbelled out by 25mm on the inside face of the retaining wall?

 

[paraic]

Good point! I have started to concede that 215mm may be all that I can get. I was just trying to get blocks the same size (190mm) so that I could continue as I have more courses up on one side than the other. So, although the 215mm blocks won't be a problem in width, they will be a problem in height. But nothing that can't be sorted out.
Paraic