A major distinguishing factor of stair spindles is the material they are constructed from. Spindles can be made from maple, pine, elm, cedar, oak, cherry, mahogany, walnut or other types of wood. When choosing a wood type, keep in mind both the strength of the wood and also the knottiness of the wood, as knots will show in the spindles. Spindles can also be constructed from wrought iron for a more modern look.
Spindles vary in thickness. Thinner spindles tend to give a sleek, elegant look to the staircase. Thick spindles give a rustic, antique look. Whatever thickness you choose, be sure to check with your local building inspector for information on spindle spacing. Spindle spacing is strictly regulated through building codes and varies by region.
The two most common types of spindles are square top and taper top. Wooden spindles are available in classic styles such as Colonial, Oxford and Georgian carvings. They are also available in more intricate designs such as a Hemlock twist or simple, straight styles such as the Stop Chamfered. Metal spindles can range from simple, straight bars to intricate, twisted designs.
Spindles vary in cost based on the thickness, materials they are made from and detail of design. Basic spindles will cost about $3 per spindle. Spindle costs can reach up to $15 per spindle for intricate designs made from more expensive cuts of wood.