Each set of stairs is unique.
Stair railing width.
Therefore let us recap on the residential stair code requirements.
Projections into the required width of stairways and ramps at each handrail shall not exceed 4 5 inches 114 mm at or below the handrail height.
Install railings on any deck that is 30 inches or more from the surrounding surface and on at least one side of a stairway leading to the deck.
The 31 1 2 inch minimum distance provides a full 4 1 2 inches more width than the double railing minimum.
36 inches guards are the rails that protect users from falling off of high areas such as landings.
Maximum 12 3 vertical height rise for a flight of stairs.
Definition of stairway width or stair width don t confuse stair width with stair depth stair tread width green arrow smaller than stairway width due to side trim boards stairway width blue arrow over most of this stairway nominally 36 or wider stairway width near stair top pink arrow.
Ibc 1012 8 b intermediate handrails.
5 easy steps to measure for stair railing.
Maximum 4 1 2 inch handrail projection into stairway width on either side.
Ensuring you have the correct dimensions is the first step in properly specifying any railing system.
The guard may project into the required width below the handrail but not above it.
Whether you are purchasing individual components or an entire railing system there are a few measurements that are needed to ensure the railing purchased is a proper fit.
Minimum 36 inch clear width for stairway.
When you have only one railing you have more walking path width available than if you had two railings.
The top of the handrail should be at least 34 inches.