Help with stairs design

[tren]

I'm looking to build my first set of stairs and would like to use plywood for the riser and tread as I like the look of them with the exposed edges. Part of my decor is in also in plywood so I would like the stairs to match/blend in. Now, I don't want any stringer showing so I would like a sawtooth stringer design.

My question is how can I achieve this with a winder turn? I can only find one example online (see link below) but it's not clear how it's put together at the turn. Any books or resources explaining how to achieve this?

My stairs will be agains a wall on one side and also on the top end.

Example of sawtooth stringer with quarter turn/winder

This is what I need but with sawtooth stringer like above.

The style am trying to achieve
https://images.app.goo.gl/2ZMeevm6Ds6zFeyk6

 

[HOJ]

I doubt you'll find a particular resource that's relative to your needs, but a good book on stair building is Simply stairs by Mark Milner, there are others but all based on trad styles

Its principally the same as a cut stringer stair, if you set out the tread plan on a ply sheet/rod you will be able to lift off your measurements.

You will need to beef up the cut stringers to carry the weight, and keep an eye on your rise and run dimensions, but it looks to me that you've already been on the stairbox builder site so the numbers are already worked out based on a <42 degree pitch angle.

One site worth a look for ply stairs design is Frilford

This is a quick reply happy to follow on.

 

[tren]

I doubt you'll find a particular resource that's relative to your needs, but a good book on stair building is Simply stairs by Mark Milner, there are others but all based on trad styles

Its principally the same as a cut stringer stair, if you set out the tread plan on a ply sheet/rod you will be able to lift off your measurements.

You will need to beef up the cut stringers to carry the weight, and keep an eye on your rise and run dimensions, but it looks to me that you've already been on the stairbox builder site so the numbers are already worked out based on a <42 degree pitch angle.

One site worth a look for ply stairs design is Frilford

This is a quick reply happy to follow on.

Thanks for that! Funny enough I bought that book 2 days ago! Waiting for it to be delivered...
Also, thanks for sharing the Frilford website, the work is unbelievable, stunning!
Since yesterday I have been playing with Kalk.pro website to configure the stairs, I think it would help a lot especially with the winder.
At the moment it's the transition from the straight run to the winder that I am not clear on how to construct.
My stairs will turn right, against the wall on the left side and will meet the ceiling joist at both ends at the the top. I am planning on doing cupboards storage underneath so I can support that side all the way down too.
I think I will be looking to make the unseen structure with pine and use the ply just for the seen bits (tread, riser and exposed stringer).

 

[HOJ]

I would wait until you get to read Marks book about setting out a winder box, as there a few details you need to factor in, which will determine tread widths in the center line of the walking path dimensions, as well as minimum size tread width needed on the narrow ends.

I find it is far easier to draw them on a layout board rather than using CAD to be honest, oh, and you'll need a large compass/trammel of some sort as well to draw the arcs.

Some piccys of stairs I have made in recent times:

Small Cottage double winder:



A version of a cut string/carriage stair with a 1/4 turn landing, in an Barn conversion, where each tread was a different length to follow the line of the old boarded wall, with a total of 20 treads on this one.



And a more traditional type of cut string:

 

[Jacob]

Concentrate first on the plan and section of just the treads and risers. That's the fixed part of the design and there are building regs. to be met.
Then look at the woodwork to support this, which can be designed in various ways.
In old buildings the structure can be very basic, sometimes without strings of any sort, just a jumble of bearers and posts as necessary. Or very refined versions - have a look at Ellis "Modern Practical Joinery"
If it's your first you are taking on quite a challenge!

 

[HOJ]

Or very refined versions - have a look at Ellis "Modern Practical Joinery"

Better still get his "Modern Practical Stairbuilding and Handrailing" book from 1932 but that wont help in this design situation.