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August 7, 2014
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Hi Vanessa,
You do not have to add a nosing if you want it more contemporary but in the setup you showed there has to be a nosing. Maybe you do not see it but it is there ;-).
Posts are connecting the front of the step and the back of the step below it. This can only be done if there is a nosing with the same width then the posts. As there is no riser the nosing does not become as visible as with a riser.
regards
Michel
The following users say thank you to michel melon for this useful post:
Vanessa Wood
July 10, 2017
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November 8, 2013
Offline Hi Vanessa, we allow up to 1MB so you should be fine on file size in those terms. We also have a 1000 pixel x 1000 pixel limit. When you try to upload the maximum allowed is shown at the bottom. If it isn’t the width and height, perhaps it is the file type, what file type are you trying to upload? Thanks, Stefan
July 10, 2017
Offline My file is only 287kb but it says the file is too large.
What is the maximum file size that you can upload?
July 10, 2017
Offline Sorry, I was trying to add it, but it says my file size is too big, so I was trying to find a way to compress the image.
August 7, 2014
Offline Hi Vanessa
there is no attachement in your message
Michel
July 10, 2017
Offline Hi,
Thank you for this. I was only thinking about going up the stairs, I had forgotten about going down them. 
I live in Norway and the standards are slightly different, although very similar.
(People seem to recomend having a tread of 250mm).
From a comfort perspective, do you have to have a nosing?
I will have concrete polished floors, and exposed wooden and steel beams, so I am trying to create a more contemporary feel.
Something similar to picture I have attached, but then an extra post so that the gap is less than 100mm.
August 7, 2014
Offline Hi Vanessa
The tread width is the space from nose to nose. This is the full space you can use without encountering any obstacle. When you add a nosing, you will see that the length is added ad the back of the step. You are correct if you say it adds room below the step but this is not working in both ways. When you come down the stairs, you are not using this room. The thread width is a reference in both ways up and down. This is also defined in the build regulations of stairs. It has a min and max value as well.
As for the risers, they do not affect the tread width. They are added at the back of the steps. Even if you do not prioritize the riser, the program will add length on the back of the step to overpass the riser.
Just remember that the thread width is calculated from step nose to step nose. The nose never moves as it is the reference for the thread width.
The only factor that has impact on the thread width is the qty of steps.
Regards
Michel
The following users say thank you to michel melon for this useful post:
Vanessa Wood, StefanJuly 10, 2017
Offline Hi,
How come when you add on a nosing, it doesn’t increase the length of the tread?
I thought the point of the nosing was that it saves you space.
Also, when you add the riser at the back it doesn’t appear to change the tread length. But it should reduce the tread length right?
Thanks
Vanessa
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