G'day welcome back to Buildsum and in this video and when I look at the balusters
calculations or looking at how far apart our
Balusters should be in our balustrade
So what we need to know we need to know the horizontal distance between our Newel posts
and we need to know the width of
The balusters, so we've got 995mm in this case and 40mm balusters width
So what we do
to look at our spacing centers we take our maximum spacing of our baluster which the
Building Code of Australia or the National Construction Code says is a 125mm between
our balusters
and we add the width of the balusters, so 40mm
and that effectively gives us the measurement from the center of one balusters to the centre of the next
So 165mm on on the horizontal, okay
So we had a 165mm spacing on the horizontal for our balusters
So what we do is we divide our
995 by 165mm that gives us 6.030
so
Because we use the maximum spacing we can't go to less than that
We have to go more so that's saying there. There's 7 spaces
We can have 7 spaces in our handrail
Now because I went with a maximum there. I think that's a bit big, so I'm actually going to go with 8 spaces and
That will actually give me 7
balusters
always have one less balusters than spacing so
8 spaces, 7 balusters, so
take my 7 balusters and times up by the width which is 40mm that gives me 280mm
So the balusters are going to take up
280mm of my
Balustrade
Okay, leaving me with
715mm so 995 minus 280 gives me
715mm
So I said earlier that I had 7 balusters, so I'm gonna have 8 spaces
so you can see here that 1 2 3 4 5 6 7 8 spaces and
1 2 3 4 5 6 7 balusters, so my 8 spaces
i divide
715 by 8 it gives me 8 sorry89.4 in between
horizontally in between
My balusters, ok, and if you want to find the center distance then you can take
You can add your 40mm back on and get 129mm
Between or from center of one Baluster to the center of the other now the horizontal distance is not
particularly helpful, so we really want to look at the distance down the actual slope of the stairs
ok now to work that out
You're going to have to know what angle your stairs are at so you may have to measure that on site with a protractor
but all you have to do is take
Your 89 point for divide that by Cos and the angle of your stairs
And they'll tell you that it's 120mm
down the slope of
the actual stair between the balusters
Okay, and if you wanted a center distance, you just have to take you know 129
Divide that by COS 42 and I'll tell you there's 174 from center of one baluster down the slope to the center the next one
Okay, so that's how we work out. How many balusters and how far apart they need to be in our in our balustrade