Hi,

First-time stair builder and first-time StairDesigner user here. I’ve attached my project to this post.

We’re building a multi-flight stair, in a U-shape, but the middle flight has to be at an – approximately – 7.5 degree angle, due to the shape of the room. Except for the first 9 cm, which are straight.

My plan is to build a timber frame, instead of cutting proper risers, and close it off with plasterboard. This is why the right cut strings are offset by 12 mm. This is because we want to use the space bellow the stair for storage, but I also want the stair to be self-supporting. The reason for this is that the long wall is built from insulating concrete forms, so it would be hard to fasten a stringer to it. The other two walls are timer framing and concrete respectively.

I’ve opted for a design with no nosing, since my wife prefers this look. Will this impact the comfort of ascending the stair?

Since this is my first time designing and building a stair, any and all feedback is more than welcome.

I’m also wondering how I submit my design to the StairFileService?

Best Regards

Erik