Step Riser Height Australian Standard

The height and depth of stair treads must be consistent throughout each flight of stairs.

Step riser height australian standard. Your staircase must have no less than 2 risers or have no more than 18 risers without a 750mm2 landing or rest area. Building code trainer 2018. Ncc part 3 9 1 3 staircase construction. Staircase riser height translates to the distance you move your foot either up or down from one step to an adjacent step.

The concern is that if you make the step rise less than 4 in you re more likely creating a tow catching trip hazard. Flights can be connected using landings. The angle of the stairs slope to the horizontal is 20 to 45 but it is recommended to have the range between 30 and 38. Helena the article above you will see this standard step riser specifications riser height 7 75 or in some codes 7 0 or in canada 8 25 maximum and 4 inches 102 mm minimum.

If the stair is higher than 10m or three storeys the treads must be solid ie. Stair riser height the code specifies that risers should not be more than 7 inches in height and that any variation of risers within a flight of stairs should not be more than inch. Building codes generally require guards for stairs that have a total rise of more than 30 inches above the floor and require that these guards be at least 34 inches 86 36 cm in height measured from the top of the treads. Minimum 130mm maximum 225mm.

Not of mesh or perforated metal if the stair is an open stair the riser openings must be less than 125mm. The australian standards for stairs and landings state that you can use a maximum of 18 stairs risers in a single flight. The australian standard contains detailed advice on steps stairs landings guard rails and so on. Researchers found that the ideal step height is 7 2 inches and the ideal step length should be anywhere between 11 and 12 inches.

Each flight must not have more than 18 or less than 2 risers. All rises r and all goings g in the same flight of stairs shall be of uniform dimensions within a tolerance of 5mm. Stairways clearances stairways shall be 600mm wide inside the stiles and it is to have a minimum clearance of 550mm between rails. Staircases to storage areas or un habitable rooms such as attics can be constructed outside the building code of australia though must comply too the australian standards as 1657.

This should be no more than 7 3 4 inches. Note that dimensions here should be taken excluding carpets rugs or runners. A stair riser is the back vertical part of a step. Minimum 215mm maximum 355mm.