G'day, welcome back to Buildsum and in this video. I want to show you another way of working with a sloping block of land
But this time instead of leveling the block
We're going to step the footing
so
Here's an idea of the footing going to end up with typical strip footing around the outside we have our isolated piers,
Blob footings
through the center of the building
so
with our typical footing what we would do is we would start
approximately a
course of brickwork or so below the ground
here a 100mm at the most you can see
of course our block of land slopes away pretty quickly that doesn't take long for our footing to come out of the ground, so
Traditionally with a sloping block of land we might want to start
Our footing a little bit deeper than normal a couple of courses lower possibly
but again doesn't take very long till that footing comes out of the ground so we
don't want to obviously dig over really the pole here just so that this end
ends up out of the goal in the ground
what we want to do is step our footing
down so we step our footing like that
so whatever we get to a point where
We're about to come out of the ground with our footing we step down, and we normally step down
Increments that are equal to
the
Material we're going to use for our Dwarf Wall, so if we're going to use Bricks standard metric bricks
We normally step down a couple of courses at a time which works out to be about
172mm or if we're using concrete blocks. We might step down a block at a time
So our steps have to coordinate with our dwarf wall material. I'll show you that a little bit closer later on
So basically what we do is we work our way around with our level and wherever we find a point where our footing is going
To come out of the ground
we step so
You can see I've stepped
Once at that corner there. Oh on there another one there this distance is it really irrelevant as long as we?
don't come out of the ground
and we constantly stepping down
A distance it is equal to a course of brickwork in this case
Okay, you don't have to do two courses you could do three or four, but it does become a point where
the distance actually becomes
a column and not oh, not a step so you have to be careful with that
So there you can see I've got the whole block step down two cause steps and then
the Bricklayer can start is brick wall and you can see here our step is
equal to two courses
And that means that the bricklayer is not splitting a brick length ways to get the water to the wall to sit nicely
So it all works out nice as a bricklayer as well
So you just steps all up and of course if he starts
So we get our bearer
400mm off the ground at this end that becomes our
DPC level that comes the height of our wall
another thing to consider
our engage piers they still just stacked on top of each other because they're tied to our Dwarf wall
however with our isolated peas
Let's okay up this end with a not too tall but once we get above a metre
We actually have to make the base of our peirs bigger
so these piers are a metre and
Down here instead of being a brick by Brick. We've now gone to Brick and a half
By a brick and a half and our footing would have to be increased to compensate for that
And this is something else need to think of before you start building if you're going to get Brick piers out of this tall
obviously there's going to be a lot more bricks and
Especially down the bottom end here. It's going to be a heap of bricks
You might want to think that do you actually want to do brick piers, or do you want to switch to something else like steel?
Because it may be more economical, but anyway that's step footings, and a stepped
strip footing