Because dual stringers are often made of metal and kept thin, they minimize visual weight. This allows light to pass through the staircase, making the space feel larger and more open. It is an ideal solution for smaller foyers or homes with an open-concept floor plan.
That hollow, springy feeling you get on cheap basement stairs? That’s a lack of center support. Adding a third (or fourth) stringer directly under the middle of the tread eliminates deflection. Each step feels like you’re walking on concrete. dual stringer stairs
In a dual stringer setup, the treads are secured between two parallel beams. This creates a "suspended" look where the steps appear to float between the rails, offering a lighter, airier appearance than traditional constructions. Because dual stringers are often made of metal
In simple terms, a "stringer" is the structural backbone of a staircase. It’s the notched or solid board that supports the treads (where you step) and risers (the vertical boards). That hollow, springy feeling you get on cheap
Honestly, almost never. The only downside is material cost (one extra pressure-treated 2x12) and about 15 minutes of extra cutting. Compared to the risk of a collapsed staircase or a lawsuit from a guest’s injury? It’s a no-brainer.