Hi Huw,

Thanks for posting your project.

Your project looks fine but I would make a couple of suggestions.

I would make the strings thicker and less deep.

Depending on the way the stair will join up to the first floor, you might also consider adding a landing step.

I’m not sure what sort of design you are looking for but I’ve adjusted your stair a bit and the attached design should work.

To get the working documents, just post the final project and as a full member, we’ll send you the files free of charge.

all the best,

Ness