The sticker price on a deck quote only tells half the story. Here is what wood and composite decking actually cost a St. Augustine homeowner once you factor in ten years of Florida humidity, sun, and maintenance.
The Upfront Cost Difference
Wood decking costs less to install initially, often noticeably less than composite for the same size deck. This is the number most homeowners compare first, and it is why wood remains a popular choice for budget-conscious projects.
What Wood Actually Costs Over Time
Wood needs sealing or staining roughly every one to two years in St. Augustine’s climate to keep moisture out of the grain. Skip that maintenance and the wood starts warping, splitting, and graying well before the deck’s structural life is over. Factor in the cost of sealant, stain, and either your own labor or hired labor every couple of years, and the gap with composite starts closing fast.
What Composite Actually Costs Over Time
Composite costs more upfront but needs no sealing or staining at all. Maintenance is limited to periodic washing to remove dirt, pollen, and mildew that builds up in humid climates. Over a ten year span, that difference in ongoing cost and labor is usually where composite pulls ahead financially, even with the higher starting price.
Which One Actually Wins Over 10 Years
For a deck that sees regular use and minimal maintenance attention, composite typically costs less in total over a decade once upfront price, maintenance materials, and labor are all counted. For a homeowner willing to keep up with sealing on schedule, wood can still make financial sense, particularly on smaller decks where the maintenance time investment is lower. Learn more about Do You Need a Permit to Build a Deck in St. Augustine, FL?
Frequently Asked Questions
Does composite decking get hotter than wood in Florida sun?
It can, especially in darker colors, since composite absorbs heat differently than wood. Lighter composite colors help offset this if a hot surface underfoot is a concern.
Which material holds up better to St. Augustine’s humidity long term?
Composite generally holds up better since it does not absorb moisture the way wood does, which means less warping, splitting, and rot risk over the years without regular sealing.
Does the choice between wood and composite affect resale value?
Composite decking is often viewed favorably by buyers specifically because it signals lower ongoing maintenance, though a well maintained wood deck with documented care can still hold its value.
Planning a Deck in St. Augustine?
Our deck building contractor team can walk you through real cost numbers for both materials based on your specific deck size and use. See finished decks and client reviews on our Google Business Profile.