Duvinage: Spiral & Circular Stairs

Search

Staircase Glossary

Spiral Stairs

Spiral Stairs are generally constructed with a fixed center pole which serves as either the primary or the only means of support from which pie-shaped treads radiate to forms a winding stairway. A stairway that revolves or rotates around a center pole to reach a specific height in which to save room that a straight stair would take up normally.


Example Applications

Towers
Basements
Mines
Boats/Ships
Cabins
Airplains
Silos
Decks
Diving Boards
Swimming Pools
Vacation Homes
Back Stage Areas
Townhouses
Tree Houses
Wine Cellars
Lofts
Churches
Libraries
Clubs
Barns
Statiums
Apartments
Condos
Attics
Standard Duvinage Stair Qualities

»  Factory fitted stackable hubs to give a solid continuous look
»  Factory formed custom handrail
»  Balusters are 3/4" diameter solid (5 lbs. each) custom made and factory fitted
»  Several choices of Tread Designs, Railing Designs, and even Balusters
»   Mechanically Assembled, No field welding required
»   All metal thickness' are a minimum of 7 gage

Spiral Stair Examples

Circular Stairs

A circular stairway consists of a series of tapered treads that form a stairway with a circular configuration. A Circular stair is a large Main Stairway curving to meet the upper floor or floors. Geometry can be one constant radius or multiple radii curves for an elliptical configuration.


Example Applications

Residences
Office Buildings
Colleges
Hospitals
Hotels
Gyms
Theaters
Airplanes
Libraries
Clubs
Banks
Schools
Mansions
Condos
And More...
Circular Stair Examples

Spiral Adjustable Stair Kit

Adjustable Spiral Kit Stairs are specifically made from any height up to 11' 10-1/2". We have standard parts that are sold in each Kit and are used in generally every situation.


Stair Kit Examples