Terraforce: reversible, interlocking retaining blocks
Terrafix: erosion control Terralite: tree ring Splitface L15 block with 4x4 Multi Accessory Steps Terraforce: Motorway interchange, Qatar
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Setback Chart for Terraforce retaining blocks

Apart from following the installation guidelines as set out by Terraforce, it is also strongly advisable to consult the setback chart provided to achieve desired (or necessary) setback of your retaining wall.

Also see the design tables for single skin walls.

Setback chart
Block Height mm
Wall Angle ß
225
Set Back mm

210
Set Back mm

200
Set Back mm
150
Set Back mm
50 189 176 168 128
55 158 147 140 106
60 130 121 115 88
65 105 98 93 71
70 82 76 73 55
75 60 56 54 41
80 40 37 35 27
85 20 18 17 13
 
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