1m x 300 mm footing called the Toe, for fence block wall
12mm reo at 400mm centers
Pumping standard fence wall footing with reo cage in place, bores piers 1800mm deep were installed at 2m centers
10mm heilix with 150 dia at 200mm spiral 4 x 12mm reo bar vertical, used when NO steel post is inserted into pier hole, stops wall from over turning, when you need to go higher, similar to using a wide toe footing design, in this case we have a 405x450mm footing with bored piers, as we could not install a wide toe footing

Block work sitting on 450 x450 footing with bored pier design, core fill blocks with reo every second core

Not a good close up, but excavator installing concrete sleepers


bobcat installing concrete whalers with grabber

typical design for block retaining wall, section B length is blank, the toe, you look up a chart as to how high the wall is going, lets say 2400mm high, then look for B width, the higher the wall the wider B will be, the thickening width 300mm is used when a load will be applied to the end of the toe, drive way building ETC

Notice the vertical reo is places at the right side off centre, telling me the load is being applied to the right side of the wall pushing to the left, get the placement of reo in correct position, if the vertical reo was placed to the left side off center the wall, the strength of the bending moment of the wall would be decreased

N12 is deformed 12mm 550 Mpa steel / reo mesh is F82= 8mm thick steel at 200 centere both directions/ -400 means 400mm centers either vertical or horizontal as maybe be drawn