First time laying blocks

[nearthemark]

Hi,

I'm building a small wall (two blocks high) in the garden. The foundations, despite being pegged out with a spirit level, are not quite level.

I started laying concrete blocks today, but as I go along in order to keep them level the mortar underneath is getting a little thinner.

Is there a minimum thickness of mortar that I should aim for underneat the blocks? It's not a huge issue if the first row of blocks is slightly uneven, and I use the second layer of mortar to even it out: the wall will be completely covered when it's done.

Thanks,


Mark

 

[kingandy2nd]

10mm is the standard, but it won't be an issue if you make the mortar bed a bit shallower or a bit deeper (at the other end). Or have a bit of unevenness as you mention - assuming by 'covered' you mean rendered.

 

[nearthemark]

Thank you. Render of some sort yet to be decided!