Stair Calculations; calculation check please

One of the online stair designers (that restricts number/sizes of steps based on total height) came up with two steps of 210 height and length of 234 even though that produced an angle of 41.9

Thanks Andy, I guess that's close enough.

I guess 233mm rounds to above 42 degrees, so it disallows it?

Yes, it looks like it. But I can't think that anyone is going to notice 0.1°, and my measurements might be out by a mm or three anyway.

Looks ok to me. Can't see the pitch limitation really mattering for this application anyway.

When I did the stairs for my loft conversion the actual pitch cam out at a little bit steeper than the maximum permitted. Just had to make sure to answer the BCO's question carefully... After he had wandered up and down and looked and measured etc (I think he was quite impressed that someone had actually built their own from scratch rather than ordering them made to measure), he asked the question "And the pitch is 42 degrees or less?", "Yup should be", was my answer. He seemed happy with that!

I measured the staircase here. It's a modern house, built in 1972 (as cheaply as possible!). It's an open staircase, and the treads overlap by

It seems somewhat steep these days coming down, but fine going up. I don't remember a problem when I was a teenager. :)

If space is really at a premium, the OP could consider a hinged step, but that would be limited to a tread length of 210mm. A tread of less than about 200mm would be uncomfortable to go down as you would have to turn your foot sideways to get it on the step. You might want to add a grab handle.

An idea I hadn't considered. Yes, might be useful, thanks.

It may not be relevent, when we got our house built and the door from the utility room in to the garage we had to have a `platform` built for the door to open on to, roughly a sq metre. This was due to building regs (Scotland) after the building was passed the `platform` was taken away and just the single step remained.

I suspect not relevant. Door opens into the lobby.

:-)

How's that then? My foot doesn't fit on a 200mm step. It's actually about a foot long (amazing isn't it) which is 300mm.

Last year I slipped on a step and ended up testing the German hospital system :( - it was wet, and smooth at the edge.

No long term damage though.

Andy

I've never heard a health service described that way before...

I thought there were rules where you couldn't open a door onto stairs, and that there needed a platform of a certain size before descending any stairs.

This might depend on which way the door opens.

Others might be along shortly to shoot this concern down, or otherwise?

My foot is also about 300mm long (funny coincidence), but only about