Deslo Stairs

What is a staircase stringer?

What is a staircase stringer?

A staircase stringer is a structural component of a staircase that supports the treads and risers of the steps. It is also known as a string or stringer board. The stringers are usually cut from pieces of lumber, such as 2x12s, and can be attached to the wall on one side or both sides, depending on the type of staircase. They are usually cut in an angled shape to give the step treads and risers their shape.

The stringers are responsible for supporting the weight of anyone walking up and down the stairs, so they must be strong and securely attached to both the stairs and floor joists or wall studs. If they are not properly secured, they can become loose over time and cause safety hazards.

designs and sizes

Stringers come in many designs and sizes to fit different types of staircases. For example, open-riser stairs require two cut stringers while closed-riser stairs require three cut stringers. Some stairs may even have more than three stringers if they have a curved shape or wider steps. When choosing a design for your staircase, it’s important to consider how much weight it will need to support as well as its aesthetic appeal.


It’s also important to take into account the material and type of lumber you’ll be using for your staircase stringer. Pressure-treated lumber is best for use outdoors because it can withstand moisture, while more expensive hardwoods such as oak or maple are better suited for indoors.

Installing staircase

Installing a staircase stringer may seem like a daunting task, but with the right tools and instructions, it can be done relatively quickly. Be sure to follow all safety precautions when working with power tools and always wear protective gear such as goggles, gloves, and a dust mask. With some patience and careful attention to detail, you’ll soon have a beautiful staircase that will last for years to come.

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