Dual — Stringer Stairs

Have a stair-building horror story? Or a trick for cutting perfect stringers every time? Drop a comment below.

Ditch the single beam. Here’s why two stringers (or more) make all the difference. dual stringer stairs

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. Have a stair-building horror story

Let’s break down what dual stringer stairs are, why they outperform their single-counterpart, and how to build them right. 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). Ditch the single beam

Why Dual Stringer Stairs Are the Gold Standard for Strength and Safety