Now that we
knew the rough wall height and wall length (property line length) we used the
incredibly easy AB Estimating Tool that we downloaded from allanblock.com. When using this
great tool, I had to remember to add a little to the wall height for the buried
block. You can also use this estimate to
calculate the amount of wall rock and infill soil you will need. Don’t forget to consider equipment rental
such as a skid steer, plate compactor, diamond saw and maybe even a wet saw for
cutting caps at the end. It all adds up
and if you plan ahead you will limit the surprises to your budget during the
process.
User's Guide to retaining walls, patio walls and fences. Learn tips and trick on installation, outdoor living ideas, and learn what and who Allan Block is all about. Get to know us and ask your construction questions here.
January 22, 2016
Planning and Estimating your Segmental Retaining Wall
Our backyard
wall was going to be a big project for a small backyard. We needed to have a staging plan for all the
material, but before that we needed to estimate the project and figure our
budget. The first step in building a
retaining wall is to make a plan. A good
plan will lead to a good project. To start, figure out how much grade change you
are working with. In our case we had
around 7 ft. We decided to cover this
height with two terraced walls. But how tall
should each wall be? We decided the
lower wall should be about 3 ft tall for easy access for planting and gardening
and the upper wall should cover the rest of the grade change and be as close to
the property line as possible.
How
about staging the material? I think a
lot of do-it-yourselfers like me, forget that with a project of this magnitude
you need to store/stage a lot of material.
Our project had 23 pallets of Allan Block, 3 truckloads of washed wall
rock and 1 truck load of sand, drain piping and geogrid. We also had to have a place to store the
spoil, or the earth that we removed during the excavation of the hillside. This was a huge pile that was there from day
one until the end of the project when it was used as topsoil backfill. Because we had a good plan for all the
materials, the neighbors were surprised we had space to actually build
the wall!
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