Hi" Jakki, sounds great, I wish I could find ready made stairs it would save me a lot of work. :o) but, did you just buy them or have some one come and get all the details of your house.??
Myself, I have to find the go and the rise, then work out how it will go together,and then hope I've thought about the thinkness of the carpet on the landing so I have to make that last tread just that little higher but in all the treads, so you wont fall, and if your working in metric, ( easy to work with) :o) I know some who will say somthing about that ha, anyway lets get on. well I hope you come back and let us know how they fit, and if they do ... good luck... John 2000