Pressure-Treated Wood vs Steel Stair Stringers
Compare cost, installation speed, lifespan, and aesthetic finishes between traditional pressure-treated wood stringers and powder-coated steel.
D
Dave Miller, Deck Contractor
Carpentry & Construction Author
Choosing between site-cut dimensional lumber and modern powder-coated steel stringers involves weighing upfront cost against long-term maintenance.
Durability Comparison
- Pressure-Treated 2×12 Lumber: Expected lifespan of 15–25 years depending on moisture and sun exposure. Requires periodic staining or sealing.
- Powder-Coated Structural Steel: Lifespan exceeding 50 years with zero rot, twisting, checking, or insect damage.
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