How wide is a standard spiral staircase?

An International Building Code compliant spiral staircase must have at least a 5′ diameter. Our standard diameters range up to 6′ wide, but we are able to go much wider if your custom staircase calls for it.

What is the minimum diameter for a spiral staircase?

60″
National Building Codes (BOCA) or Uniform building code requires a minimum of a 60″ diameter spiral with 30 degree treads and a 4″ on center maximum spacing for balusters.

How wide are metal spiral staircases?

Spiral stairs are available in several different diameters (widths) depending on how much space you have available where your staircase is going to be installed. The Iron Shop offers spiral stairs in diameters ranging from 3-foot 6-inches up to 6-foot 6-inches. These are the most common widths in use today.

What is the radius of a spiral staircase?

600 to 1500 mm
The staircase radius is the dimension from the staircase’s centre to the outer edge of the handrail. Weland manufactures spiral staircases with a radius of 600 to 1500 mm. Within this range, there are standard radiuses on even decimeters.

Are spiral staircases against code?

Exit Requirements The California Code of Regulations for commercial buildings, for example, allows spiral staircases to be used as an exit if the minimum tread width is at least 10 inches and if the inner radius of the staircase is at least twice the width of the stairway.

How much weight can a spiral staircase hold?

According to international building code requirements, each stair step must be able to bear at least 300 lbs of concentrated weight. Floating stairs are no exception, and thankfully, our floating stair treads soar above and beyond that amount.

Are spiral staircases code?

Do spiral staircases save space?

Spiral Staircases do take up less space than conventional staircases. This is because the steps are all located within the diameter of the spiral, regardless of the height.

How big of a spiral staircase do you need?

This diameter will alter slightly depending on the diameter of the centre column and the handrail but is generally 1400mm for a secondary and 1800mm for a primary spiral. Make the most of your space If there is space available, it is always worth opting for as large a diameter as possible.

What are the dimensions of a paragon spiral staircase?

Paragon’s designs begin with a few base spiral staircase dimensions. While your spiral staircase height is one, the other is spiral staircase diameter, or spiral stair width.

What are the dimensions of a Salter spiral stair?

Salter Spiral Stairs. Of the standard stair dimensions, the most important measurement when planning your spiral stair design is going to be your floor to floor height. To measure your floor to floor height, take a tape measure and start at the bottom floor and measure up to the floor where your stair is going.

Why are spiral staircases called ” walking paths “?

This is because your stair’s diameter will determines what is called your “walking path”. Your walking path is the amount of space that you will have to walk up and down your staircase. Because of the compact nature of a spiral stair design, many homeowners are concerned that there won’t be enough room to comfortably walk up and down.