# What are the building regulations for staircases?

## What are the building regulations for staircases?

The following rules must be met: The individual rise must be between 150mm and 220mm. The individual going must be between 220mm and 300mm. The Pitch of the stair cannot be greater than 42 degrees.

What is the standard for stairs?

The 2018 IBC building code for rise and run of stairs is a maximum 7″ rise and minimum 11″ run (tread depth). The OSHA standard for rise and run of stairs is maximum 9.5″ rise and minimum 9.5″ run (tread depth). The IBC maximum rise of a single stair flight is 12. ‘

What is the minimum stair landing size?

36 inches
The width of each landing shall not be less than the stairway served. Every landing shall have a minimum dimension of 36 inches (914 mm) measured in the direction of travel.

### How do you calculate stair size?

Divide the overall change in level (overall rise) by 150mm.

1. 450mm / 150mm = 3. This tells us that with a riser of 150mm we will need 3 risers/steps.
2. 450mm / 2 = 225mm.
3. Twice the Rise plus the Going (2R + G) should be between 550mm and 700mm.
4. 2 x 150mm + 275mm = 575mm.

What is a standard stair width?

Staircase width refers to the side-to-side distance if you were walking up or down the stairs. According to the IRC, this distance must be at least 36 inches and does not include handrails.

What is the building code for stairs in Australia?

In addition, the Australian Standard has recently been updated to be consistent with the Building Code: AS 1657- 2013: Fixed platforms, walkways, stairways and ladders – Design, construction and installation. The Australian Standard contains detailed advice on steps, stairs, landings, guard rails and so on:

## How big does a stairway need to be in Australia?

270 mm from each side of the unobstructed width of the stairway if the stairway is 1 m wide or more. In addition, the Australian Standard has recently been updated to be consistent with the Building Code: AS 1657- 2013: Fixed platforms, walkways, stairways and ladders – Design, construction and installation.

Do you have to have guardrails on stairs in Australia?

The Australian Standard specifies that except where there is a fixed structure at a distance not greater than 100mm from the stairway stile, stairways and stairway landing shall be provided with guardrailing on any exposed side. The guardrailing must be constructed to comply with one of the following requirements:

How many risers does a stairway need to have?

Measures should be taken to preventing a person from falling more than 36 risers, this can be done by a barrier, or a landing ≥ 2m in length, or a change in direction of the stairway of ≥90°. The tread shall extend across the full width of the stairway and the tread surface shall be slip-resistant.