I'm having to build a short retaining wall for a raised patio, in order to take up the slope in my garden. At it's minimum, the wall will only be 100mm high (above ground level) and at the maximum will be 300mm high. Once built, I will be backfilling with compacted Type 1 before laying the patio
What is the minimum thickness of wall recommended for this type of purpose?
I have been looking at 400mm concrete footings (150mm deep) and then laying concrete blocks on their side to give a 215mm wide wall. That seems quite a substantial wall for such a small height, so was wondering if I could get away with 300mm wide footings and just use 100mm high density concrete block for the wall, given it won't be holding back a huge amount.
Wondering if anyone with experience building small retaining walls for patios has any advice on this?
What is the minimum thickness of wall recommended for this type of purpose?
I have been looking at 400mm concrete footings (150mm deep) and then laying concrete blocks on their side to give a 215mm wide wall. That seems quite a substantial wall for such a small height, so was wondering if I could get away with 300mm wide footings and just use 100mm high density concrete block for the wall, given it won't be holding back a huge amount.
Wondering if anyone with experience building small retaining walls for patios has any advice on this?