How Much Does a Pressure-Treated Deck Cost in Central PA?

If you’re looking for the most affordable way to add outdoor living space to your home, pressure-treated lumber is usually the starting point. It’s durable, widely available, and far more budget-friendly than composite. But what does a pressure-treated deck really cost?

In Central PA, most homeowners can expect to invest between $15,000 and $30,000 for a pressure-treated deck, depending on the size, design, and features.

What Impacts the Cost?

Several key factors determine where your deck project will land within that range:

• Size – A 12x16 deck is a very different build than a 20x30 deck. Larger decks multiply both materials and labor.

• Height & Structure – A standard deck off the first floor of your home is much less costly than a second floor, or multi floor deck. Also, surprisingly, ground level decks also add some additional considerations. Read more about them here.

• Railings – Basic wood railings are cheaper, but many homeowners upgrade to PVC or aluminum for looks and low maintenance.

• Stairs – One simple staircase is common, but extra sets add cost.

• Site Conditions – If your yard needs grading, extra footings, or has access challenges, that can drive the price up.

Cost Breakdown Example

Here’s what a mid-sized pressure-treated deck might look like in today’s market:

• 12x16 deck, ground level, pressure-treated lumber → $12,000–$15,000

• 16x20 deck, with railings and one staircase → $16,000–$20,000

• 20x30 deck, raised with railings, stairs, and some upgrades → $25,000–$35,000+

The Pros of Pressure-Treated Lumber

• Lowest upfront cost – No other decking material beats it for entry price.

• Strong and durable – Properly built, it will handle decades of use.

• Customizable – Can be stained, painted, or left natural.

The Cons to Consider

• Maintenance required – Expect to stain or seal every 2–3 years to prevent rot and warping.

• Prone to weathering – Over time, boards can crack, split, or fade.

• Shorter lifespan than composite – You’ll typically get 10–15 years before replacement becomes likely.

Is Pressure-Treated Right for You?

If your priority is getting a deck at the lowest upfront cost, pressure-treated lumber is the best choice. It’s especially appealing if:

• You’re building a starter deck now and may upgrade later.

• You don’t mind putting in some maintenance time.

• You want the largest possible deck within a tighter budget.

If low maintenance and long-term durability are higher on your list, you may want to explore composite instead. See our full guide here: How Much Does a Composite Deck Cost?