OSB board will do the trick. You need another photo for us to offer a species and finish. Natural finish (clear coat...water based polyurethane finish...NO oil modified) in a low gloss or satin finish on white oak with FLOOD LIGHTS will offer the same "look" as the poor photo. Beyond that, you will need a better photo.

It totally depends upon your interior theme. Now a days polished cement floor is in as it gives quite a raw look and you can go for some combination of glass mosaics with it. Else you have so many options readily available in the market.

hi struti I would say it's matter of choice. marble or even granite or rough stone will have its own charm and definitely long lasting but only when staircase passage is comfortable huge. if space is compact wooden stairs would be better as its could be playfull with spiral or even basics with moulds and finishes, giving staircase elevation a contemporary look thanks shradha shah beescheese design

Hello Agamonee, In that case, you can have wall mounted ledges, corner ledges on either side or a headrest with inbuilt storage. Thanks, Nitin CORNERSTONE DESIGNS Bangalore.