They can be adapted for straight, L-shaped, U-shaped, or even modern curved configurations. Dual Stringer vs. Mono Stringer: Which is Better?
Screw or nail every tread into every stringer below it. A 42” wide step needs screws into the left, center, and right stringers. This ties the whole system together.
: By using only two side supports, the space between and under the treads remains unobstructed, enhancing an airy, open-concept feel.
When you picture a standard set of wooden stairs, you probably imagine two long, sloped boards running down the sides. Those are your stringers. But in modern construction—especially for exterior decks, high-traffic entryways, and heavy-duty applications—the (and often the triple or quadruple stringer) is becoming less of a "nice-to-have" and more of a requirement.