Stair railing height ontario building code

#STAIR RAILING HEIGHT ONTARIO BUILDING CODE CODE#
#STAIR RAILING HEIGHT ONTARIO BUILDING CODE PLUS#

Now lets take a look at these sections as we explain the requirements. Since guardrails are commonly used to serve as a guard, we want to see how this section applies to guardrails so that they can comply as a РІР‚СљGuardРІР‚Сњ as defined per Section R312. So a guard can be a building component such as a small wall that meets the minimum height requirement for a guard. РІР‚СљA building component or a system of building components located near the open sides of elevated walking surfaces that minimizes the possibility of a fall from the walking surface to the lower level.РІР‚Сњ Per the IRC, a Guard is defined as the following: In this post we will just discuss the topic of guards. Section R312 is Titled РІР‚СљGuards and Window Fall ProtectionРІР‚Сњ. This section explains when guardrails are required, the minimum height, and opening limitations to provide a minimum level of safety.Р”В«efore we get into the details, let me explain some terminology.

#STAIR RAILING HEIGHT ONTARIO BUILDING CODE CODE#

These guardrail requirements are found in Section R312 of the International Residential Code (IRC). To see what the difference is between the International Residential Code (IRC) and the International Building Code (IBC), check out this POST. The International Residential Code (IRC) establishes the requirements for guardrails to ensure a standard of safety for the user. The РІР‚СљwalklineРІР‚Сњ is the imaginary line 12РІР‚Сњ away from the inner edge on which people are expected to walk.Guardrails are installed to protect occupants from falling from various types of walking surfaces.

Walkline РІР‚вЂњ for curved stairs, the inner radius of the curve may result in very narrow treads.

Per Ontario Building Code, the minimum headroom is 1,950mm (6ft 5РІР‚Сњ).

Headroom is the height above the top of a tread to the ceiling above it.

The pitch line is the imaginary line along the tip of the nosing of the treads.

The slope or pitch of the stairs is the ratio between the rise and the run (not the tread depth, due to the nosing).

The total rise of the stairs is the height between floors (or landings) that the flight of stairs is spanning.

It is often not simply the sum of the individual tread lengths due to the bullnose overlapping between treads

The total run of the stairs is the horizontal distance from the face of the first riser to the face of the last riser.

To avoid confusion, the number of steps in a set of stairs is always the number of risers, not the number of treads.

In Ontario, the allowable range for a run 210mm (8-1/4РІР‚Сњ) to 355mm (14РІР‚Сњ). A person using the stairs would move this distance forward with each step they take.

The run of each step is measured from the face of a vertical riser to the face of the next riser up.

#STAIR RAILING HEIGHT ONTARIO BUILDING CODE PLUS#

The tread depth of a step is measured from the edge of the bullnose to the face of the vertical riser if the steps have no bullnose, it is the same as the run otherwise it is the run plus the extent of one bullnose.In Ontario, the allowable range for a rise is 125mm (4-7/8РІР‚Сњ) to 200mm (7-7/8РІР‚Сњ). A person using the stairs would move this distance vertically for each step they take. It is not the physical height of the riser the latter excludes the thickness of the tread. The rise of each step is measured from the top of one tread to the top of the next tread.The following stair measurements are important: The measurements of a stair, in particular the rise (height) and run (depth) of the steps, should remain consistent throughout the stairs.

Stair railing height ontario building code