Each stair riser will need a minimum of 6 in.
Allan block retaining wall steps.
Allan block is the solution for a variety of applications.
Set the ab jumbo juniors in place to form the first riser.
Building step ups with ab fieldstone 824 assembly.
Landings can soften a long stairway and provide an easy way to tie sets of steps together.
The allan block collections of retaining wall products give you a choice of styles to meet your site and design requirements.
Rise and a 12 in.
With allan block you can turn retaining wall ends into the hillside with smooth flowing curves corners or simple step downs.
150 mm behind the retaining wall block.
No other wall system gives you as many choices for finishing off your retaining wall project.
200 mm rise and a 300 mm run on gentle slopes add pavers or other materials to increase the depth of the tread and length of the run.
150 mm of base material under it that extends a minimum of 6 in.
On steep slopes keep the blocks tight together.
In this example the first stair riser is the continuation of the base course of the retaining wall that the stairs are being built into.
Using geogrid to reinforce the retaining wall allows taller projects to be built.
Step ups are most stable when the upper block has sufficient bearing on the lower block.
With allan block you get an 8 in.
Step up again to the top of the slope.
All the collections can build the basic gravity wall system for smaller wall projects.
You will learn how to lay the base course and proper placement for wall and step units an.
Build the wall up to the step up location.
150 mm and excavate back another 12 in.
Learn how to build steps using concrete block retaining wall units.
If using the 812 assembly use the instructions listed above.
100 mm of wall rock in the trench and compact thoroughly.
One of the unique benefits that sets allan block apart from other retaining wall systems is a great variety of options for ending and stepping down retaining walls.
The length of the 824 assembly if available provides the flexibility to make this block ideal for this application.