What a deck really costs per square foot

Quick answer: typical deck cost per square foot (by material)

Cost-per-square-foot depends on more than the deck boards. Footings, joists, stairs, railings, height, and site conditions can change the price a lot.

Here are typical *estimates* you may see for new deck builds in the US, stated per square foot of deck surface. Your local permitting rules and labor costs can also shift the range.

Pressure-treated wood is usually the lowest upfront.
Cedar is a mid-range option.
Composite costs more upfront but is often chosen for easier upkeep.
PVC is usually the priciest and most weatherproof option.

If you want a realistic number for your project, the best next step is to compare bids from the licensed, insured deck builders we connect you with via get matched.

Material cost ranges (estimates, not quotes)

Use these ranges as a starting point, not a quote. Two decks that both measure 200 sq ft can still price differently if one has stairs, a taller height, or requires more complex footings.

Also note: the cost ranges below are for a typical deck build. “Deck surface area” can mean slightly different things depending on how an estimator counts it.

If you’re comparing materials, it helps to think in trade-offs:
Pressure-treated boards tend to be cheapest now but need regular sealing/staining.
Cedar often costs more than pressure-treated but is commonly chosen for its look.
Composite typically costs more up front and aims for lower maintenance.
PVC is usually the most weatherproof and typically has the highest material price.

What drives the price up (the stuff per–sq-ft can’t capture)

Decks get more expensive when the structure gets more complex. These are common “price changers” that can push a project toward the high end of the estimate range.

Height, railings, and stairs matter. A higher deck often needs stronger framing, longer posts, and more railing. Stairs usually add cost quickly because of labor, riser/tread calculation, and extra framing.

Footings can be a big swing factor. Builders may need different footing sizes or more footings based on frost depth, soil type, slope, and local code requirements.

Site conditions also play a role. Tight access, tree removal, uneven ground, and drainage considerations can increase labor and setup time.

Even the ledger board details can affect cost (for example, how it’s attached, flashing requirements, and the home’s siding type). For a material comparison, you may also find helpful context in composite deck options.

How to talk to builders so your estimate is apples-to-apples

Per–square-foot numbers can mislead if two bids include different things. When you request pricing, ask for a clear scope list.

Good details to request:
What’s included in the sq ft price (boards only, or full framing too)?
Railings: included or extra? How many linear feet?
Stairs: how many steps, and included in the base price?
Footings: assumed quantity and type (or a line item for site conditions)?
Ledger attachment and flashing: included?
Any demo/removal: included or not?
Permits and inspections: which party handles them?

Most important: confirm the licensed, insured builder you choose is allowed to do the work in your city/state and that the builder will pull the right permits and pass inspection. For a general overview of the project process, see how deck builds typically start.

Costs by material: honest trade-offs (not a sales pitch)

Pressure-treated wood usually wins on upfront price. The trade-off is upkeep—sealing and/or staining schedules can vary by product and climate, and neglect can shorten lifespan.

Cedar is often chosen for its natural look and color. It’s still a wood product, so you can expect periodic maintenance to protect the surface and reduce weathering.

Composite is popular because it’s engineered for durability and often needs less frequent staining. Still, installation quality matters: spacing, fastening methods, and proper drainage can affect how it performs over time.

PVC decking is designed to be highly weather-resistant. It’s typically the most expensive choice, and the “best” option for you usually depends on your priorities—budget, maintenance comfort, and how long you want the deck to last before major replacement.

A simple next step: get matched, compare written scopes, and choose

OutDeckly is a FREE matching and information service. We connect you with licensed, insured deck builders near you so you can compare options.

We don’t build decks, design structures, or pull permits. We also can’t guarantee pricing or outcomes. The only safe way to confirm your real cost is to get the scope and price in writing from builders you hire.

If you share a few project details, we’ll help connect you with deck builders who can price your specific site. Start with get matched and include anything you know about size, height, stairs, and railings—those are usually the biggest drivers of cost.