Which blocks for garage foundation?

[Ant4300]

Hi,

I have laid the footings for a garage and am going to start laying blocks to come up to the floor level/damp course. Only thing is I am not sure which are the right type of blocks to be using?

As they are going to support the rest of the garage walls, should I use high strength concrete blocks such as 7.2N or will I be fine using standard 3.6N blocks? Also are all concrete blocks suitable for use below the damp course/below ground level?

My garage will have an eaves height of 2.5m and be single skin using 440x215x100 blocks.

Thank you in advance for your help.

 

[noseall]

Use 7n dense concrete blocks below ground/DPC.

Use class B engineering bricks where masonry is showing above ground and below DPC.

 

[Screech20]

Sorry to hijack, but this is pretty much the same question that I need to ask, and saves having another topic.

So are these the bad boys to use below ground up to FFL? http://www.wickes.co.uk/Dense-Aggregate-Block-7-3N/p/113505


Cheers

 

[cannonfoder]

yep use 7n blocks below ground level then you can pick up the rest with class b or just run stright up with the block work from damp if you wanted