Local Decks & Patios contractors
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FAQs about Decks & Patios
How much does a new deck cost?
A pressure-treated wood deck costs $15–$25 per square foot, making a typical 300 sq ft deck $4,500–$7,500. Composite decking (Trex, TimberTech) costs $25–$50 per sq ft, or $7,500–$15,000 for 300 sq ft. Cedar and redwood fall in between at $20–$35 per sq ft. These prices include framing, decking, railing, stairs, and basic hardware. Elevated decks, complex shapes, and built-in features (benches, planters, lighting) add cost. Permits are required for any attached or elevated deck in most municipalities.
How long does a deck last?
Pressure-treated wood decks last 15–25 years with regular maintenance (staining or sealing every 2–3 years). Cedar and redwood last 15–20 years. Composite decking lasts 25–50 years with minimal maintenance (occasional cleaning). The substructure (joists and beams) typically outlasts the decking surface. The most common point of failure is the ledger board connection to the house — improper flashing here allows water intrusion that rots the rim joist. Composite decking eliminates the staining and sealing maintenance cycle but costs 50–100% more upfront.
Do I need a permit to build a deck?
In most jurisdictions, yes. Attached decks (connected to the house) and elevated decks (more than 30 inches above grade) almost always require a building permit. Freestanding ground-level decks (under 30 inches, not attached to the house) may be exempt in some municipalities, but check your local building department. Permits ensure the deck meets structural code requirements for footings, joist spacing, ledger attachment, railing height, and stair dimensions. Your deck builder should include permit costs in their estimate and manage the permit and inspection process.