If using the 812 assembly use the instructions listed above.
Allan block retaining wall steps.
With allan block you get an 8 in.
150 mm and excavate back another 12 in.
The length of the 824 assembly if available provides the flexibility to make this block ideal for this application.
Step ups are most stable when the upper block has sufficient bearing on the lower block.
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.
Using geogrid to reinforce the retaining wall allows taller projects to be built.
Landings can soften a long stairway and provide an easy way to tie sets of steps together.
Allan block is the solution for a variety of applications.
150 mm behind the retaining wall block.
All the collections can build the basic gravity wall system for smaller wall projects.
The installation information demonstrates how to successfully install retaining walls two sided patio seating walls and privacy fencing select the application for your project and learn step by step details on how to plan design and build with allan block.
100 mm of wall rock in the trench and compact thoroughly.
150 mm of base material under it that extends a minimum of 6 in.
On steep slopes keep the blocks tight together.
Set the ab jumbo juniors in place to form the first riser.
Each stair riser will need a minimum of 6 in.
Step up again to the top of the slope.
The allan block collections of retaining wall products give you a choice of styles to meet your site and design requirements.
Build the wall up to the step up location.
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.
Learn how to build steps using concrete block retaining wall units.
Fill the block and behind with more wall rock and carefully compact again to lock.
At the back of the trench step up 6 in.
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.
No other wall system gives you as many choices for finishing off your retaining wall project.