Composite vs pressure-treated wood

Almost every homeowner I meet asks the same question at the kitchen table: should I go composite or pressure-treated? It is the single most common deck question in Hamilton, and most of the answers online are written by people selling one of them.

I build with both. Here is the honest version, the same one I give in person.

The real cost difference

Pressure-treated wood costs less up front. That is the simple part. Composite costs more, and depending on the size of the deck and the board line you pick, the difference between the two can be the size of a small vacation or a nice one.

But that is only the day-one math. Wood needs to be stained or sealed every two to three years to stay looking good, and each round costs you either a weekend plus materials or a painter's invoice. Composite needs a wash once a year. Soap, water, done.

So the honest comparison is not "cheap vs expensive." It is "less now, more ongoing" vs "more now, almost nothing ongoing." Over a fifteen-year deck life, that gap narrows. I am not going to pretend it disappears completely, because it does not always, but most homeowners are surprised how much of it is maintenance they forgot to price in.

What living with each one actually feels like

Here is what matters more than the money, because you will live with this deck every day.

Wood looks and feels like wood. It has warmth, it takes stain in any color you want, and if you get tired of the color in ten years you can change it. It also gets hotter underfoot than people expect in full sun, it can splinter as it ages, and if you skip the maintenance it grays out and starts looking tired. Wood rewards the homeowner who will actually do the upkeep.

Composite stays consistent. The color you pick on day one is the color you get for years, it does not splinter, and bare feet love it. It can also get hot in direct sun, and darker colors run noticeably warmer. Premium composite lines resist scratching and staining well. Budget lines less so, and cheap composite can fade or stain in ways the brochure does not emphasize. The material matters more than the marketing, so the specific product line is worth discussing at the estimate.

One thing people ask me a lot: is composite slippery? A wet composite deck is no more slippery than a wet wood deck. Traction is about texture and drainage, not the material category.

The lifespan question

A well-maintained pressure-treated deck lasts roughly ten to fifteen years before boards need real attention. Some go longer with diligent care. Most do not get it.

A composite deck surface lasts twenty to twenty-five years with basic cleaning. The framing underneath is still wood either way, built to the same code, so the frame life does not change with your decking choice. What changes is the surface you walk on, and whether you are replacing boards in year twelve or year twenty-two.

This is where I tell people to be honest with themselves about how long they plan to stay in the house. If you might move in five years, wood often makes more sense, because you will not be there to collect the long-term payoff of composite. If this is your forever home, composite starts to look like the smarter bet.

The one mistake to avoid either way

The biggest mistake I see has nothing to do with the material. It is choosing a board color from a two-inch sample in a showroom or on a screen and being surprised by it on a full deck in daylight. Sunlight changes everything. A sample that looks like a warm brown under store lighting can read completely different on your south-facing backyard at noon.

Always ask to see full boards outside before you commit, whatever material you choose. It takes ten minutes and saves years of mild regret.

So which one should you pick?

Here is my rule of thumb. Pick pressure-treated if you want the lowest upfront cost, you like real wood, and you will actually stay on top of staining every couple of years. Pick composite if you want the lowest maintenance, you plan to stay in the house long enough to enjoy it, and the budget allows the higher starting point.

Either one, built right on solid footings, will give you a great deck. The material decision should match your budget, your timeline in the home, and your honest answer to one question: are you going to do the maintenance?

Run your deck through our Design Your Deck tool. You can switch between materials and see how each one changes your ballpark price in about a minute. It runs on the same pricing logic I quote from, so the number is the neighborhood of the number I would give you in person.

Then book a free estimate and I will walk you through the actual samples, outside, in daylight, before you decide anything.