Hi Dominic,

Parameters on the step are wrong. It seems you try there too to make a tenon connection? 

If you do you need to set your values correctly. You are using 15mm for upper and lower recess which makes 30mm in total and your step is only 26mm. So in fact you are cutting away that part of the step. 

I have removed these settings and set the step penetration to 15 instead of 30 as this is too much for a stringboard of 43 mm. A general rule is: step penetration needs to be 1/3 of the thickness of the stringboard. So in your case 15 is the max value.

On the top stair, there were the same issues. I also repositioned the newels compared to the handrails to make them fit better. In angled flights like this one, you could try the diamond-tip newel. It handles angles better but is more technical in production. However, they would keep the stringboard shoulders straight. 

I also worked on the step positions to have a better fit.

Here are the 2 versions.

Check the following

Look at it and check whether you need the tenon on the steps yes or no. Set the parameters correct if yes

use diamond tip newels if it is of use for you  ( they give an overall better connection with the elements). this is only for the top stair variant

regards

Michel 

Hi Dominique,

There are some very basic demands in your post so I will tell you where to look so you find out and learn the program.

the most important screen is your 2D work screen with the stair design on and on the right side the properties screen. These are giving you all the needed information of every element and parameters. You can set all parameters on that screen.

1 A overhang can even go to 50 mm. There is no specific rule here unless you have it in your building code 

2  Enlarge a stringboard ( select first if you want to work on a single piece ). Look into the properties screen  ” stringboard parameters “

3 Step and riser penetration in newels. This is a link parameter. ( connection between elements ). So again the properties screen “links parameters, step/newel post link”.

4 Tenon connections. Again this is a link parameter. Properties screen “links parameters, newel post/stringboard links” ( upper, lower and lateral recess).

5 You cannot change the width of a step (7 in your case). Stairdesginer calculates the tread width for ideal steps. You can change the winding which pivots around the walking line. The only step you can change is a landing step which has to be added between flights. In the case of your stairs, I do not see any reason why this step should be made smaller?

6 For videos and tutorials you can always go to our help centre. Here is a link ( https://wooddesigner.org/help-centre/ )

7 Riser into a step you find in the step parameters where you can find the riser parameters “upper and lower offset”. For penetration into stringers and newels. Link parameters. So properties screen “links parameters, step/ stringboard links and step/newel post links”

Michel