Unable to find 115mm Aerated Block - Alternatives?

[marty3]

I am trying to replace some missing blocks in my wall after a boiler has been removed

I am struggling to find aerated blocks in this particular size 215x440x115mm

The closest I have been able to find is 100mm, would this be ok to use or am I better off trying to locate the 115mm versions?

Is there any reason they seem so difficult to find, is it an old sizing not used much anymore?

Thanks in advance!

 

[stuart45]

Use 100mm for that small area.

 

[^woody^]

Buy a 100mm block, and cut it to 115 lengths with a wood saw.

 

[marty3]

I think that is probably the way I am going to go. I will buy bigger and cut them down.

Thanks