Wall Setback Chart

Building
retaining walls
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Allan Block retaining wall blocks come in a variety of setbacks. Note: retaining walls designed with a 12° setback need more space than a 6° retaining wall but will be stronger and more stable.



Allan Block Retaining Walls Setback Chart
Setback Wall Height
4 ft
(1.2 m)
6 ft
(1.8 m)
8 ft
(2.4 m)
10 ft
(3.0 m)

AB Stones only
of the AB Collection

10.0 in
255 mm
15.0 in
380 mm
20.0 in
510 mm
25.0 in
635 mm

AB and AB Europa Collection
(excluding AB Stones & AB Vertical)

5.0 in
125 mm
7.5 in
190 mm
10.0 in
255 mm
12.5 in
320 mm

AB Fieldstone Collection

5.0 in
125 mm
7.5 in
190 mm
10.0 in
255 mm
12.5 in
320 mm

AB Vertical only
of the AB Collection

2.5 in
65 mm
3.75 in
95 mm
5.0 in
125 mm
6.25 in
160 mm
Note:All values are provided for reference only.


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