Ideal Tread and Riser Size of Staircase
Ideal Tread and Riser Size of Staircase
This is an illustration of the ideal tread and riser size for stairs, based on the comfort and safety of the user. It compares two scenarios: one with incorrect dimensions and one with correct dimensions. Here are some key points:
Tread is the horizontal part of the stair that the foot is placed on. Riser is the vertical part of the stair that connects two treads.
the ideal tread size is 15 cm or less and the ideal riser size is 30 cm or more. This is based on the average human step length and height.
Having a tread size of more than 15 cm and a riser size of less than 30 cm can cause discomfort and difficulty for the user, as they have to stretch their legs and bend their knees more than usual.
Having a tread size of less than 15 cm and a riser size of more than 30 cm can be dangerous, as the user may slip or trip on the stairs.
There are many factors to consider when designing stairs, Ideal Tread and Riser Size of Staircase, such as space, budget, regulations, location, size, design, style, accessibility, and aesthetic appeal. Here are some brief explanations of each factor:
Space: The available space for your staircase will influence the stair dimensions and overall design. You may need to choose between straight, turned, or spiral stairs depending on the space constraints.
Budget: Stairs vary considerably in price depending on the scale of your project and the materials and equipment you use. You should work to a firm brief for your project to be cost-effective.
Regulations: There are many regulations that must be adhered to when building stairs, such as the maximum and minimum values for the rise, run, tread, nosing, landing, handrail, and headroom. You should consult the local building codes and standards before designing your staircase.
Location: The location of the stairs affects the lighting and safety of the users. The exit of the stairs should be close to a door in case of a fire. The stairs should also be well-lit, either by natural or artificial sources, to prevent accidents and enhance the appearance.
Size: The size of the stairs depends on the height and length of the floor they connect, as well as the comfort and efficiency of the users. A common formula to determine the optimal size is 2 risers + 1 tread = 63-65 cm.
Design: The design of the stairs refers to the layout and shape of the steps. There are three broad categories: straight, turned, and spiral. Each has its advantages and disadvantages in terms of space, cost, and style.
Style: The style of the stairs refers to the aesthetic and architectural features of the staircase, such as the material, color, texture, pattern, and finish. The style should match the overall theme and mood of the space and the building.
Accessibility: The accessibility of the stairs refers to how easy and convenient it is for people with different abilities and needs to use the staircase. You should consider factors such as the width, slope, landing, handrail, and nosing of the stairs, as well as the possibility of installing ramps, lifts, or elevators.