Kosour or bowstring — which staircase to choose?

Two -story dachas, cottages and houses today at the peak of popularity — they are being built and buy by those who decided to realize the dream of their own suburban housing. An integral element of a multi -tiered building is a staircase — marching or screw, on scums or aunts, with or without risers. Choosing a stairwell is not as simple as it seems at first glance — you need to take into account many important factors: the size and layout of the room, its functional purpose, interior features. Owners of two -story houses who decided to install a march ladder must decide which model is best for — on Kosoura or on a bowstring?