DIY Doctor UK DIY Forums

i am building a retaining well for a patio 1 foot 6 inches below path 1foot 6 inches above
what size footings will i need
length of wall will be 5000mm
and what mix will i need
Trevor

a pretty decent rule of thumb is to make the footing depth equal (minimum) to the wall width, and the footing width equal (minimum) to twice the wall width. hope this helps.