Designed Stairs

Designed Stairs has the experience to design structural, open-riser staircases that are also beautiful works of contemporary art.

  • Is This a Spiral Stair or a Circular Stair?

    The most common confusion within the stair building world is, without a doubt, the spiral versus the circular stair.  It will not take long to clear this up. 

    The most common confusion within the stair building world is, without a doubt, the spiral versus the circular stair.  It will not take long to clear this up. 

    A spiral stair has treads that are supported by a central support post.  They usually have a very tight diameter of 48 to 72 inches, and are not recommended as main stairs in any inhabited structure.

    A circular stair has two stringers supporting treads and (typically) risers, and will take up a much larger floor space than a spiral.

     

  • Why are descending volutes used?

    A volute is that “Curly” piece that is at the start of many stair rails.

    Standard Volute
    This photo shows a manufactured volute with a manufactured up ease fitting. The up ease fitting is the connector between the volute and rake rail.

    A standard volute shape will have a rail fitting attached to it, called an “up easing”. The up easing allows the rail that is coming down the rake of the stair to level out into the volute.

    On many curved staircases, keeping the rail to a consistent height as it curves up the rake requires a special handmade volute called a “descending volute” or a “climbing volute”.

    Descending Volute Handcarved
    The volute in this photo, is connected to the rake rail with a much longer and slightly twisting hand carved descending up ease fitting.

    This type of a volute is a “hand carved fitting” that requires many hours of experienced layout skills to understand what is needed in each unique situation. The carving work on fittings can take anywhere from 4 hours to over 40 hours of experienced rail carving labor. The result is a beautiful, one of a kind piece that is unique to the stair that it was made for.

    More and more we see descending volutes used on stairs that are not curved. They are desired for their strong artistic statement and elegant beauty. For more on carving rails, see Hand Carving Stair Railings.