Should You Choose Wood or Composite Decking?
A complete pressure-treated wood deck runs $40 to $70 per square foot installed; composite runs $55 to $100. The gap narrows over the life of the deck, because wood needs cleaning, sanding, and staining every two to three years while composite needs little beyond periodic washing. The choice is genuinely consequential: it affects upfront cost, ongoing maintenance, appearance over time, and how long the deck lasts. Here’s an honest comparison to help you decide.
Upfront Cost
Wood decking, particularly pressure-treated lumber, costs significantly less upfront than composite. Pressure-treated runs $40 to $70 per square foot installed; composite runs $55 to $100. Those figures are for a complete deck – footings, framing, decking, a railing system, and steps to grade – so a quote near $15 to $35 per square foot covers decking and framing only. Cedar and redwood fall between those two, with better natural properties than pressure-treated but without composite’s maintenance advantages. If installation cost is the primary consideration, wood wins clearly. But the cost comparison changes when maintenance is factored in.
Maintenance Requirements
This is where the comparison shifts. Wood decks require cleaning, sanding, staining or sealing every two to three years to maintain appearance and prevent rot, warping, and splinter development. Skipping maintenance accelerates deterioration and can lead to board replacement within ten years. Composite requires essentially no maintenance beyond periodic washing: no staining, no sealing, no sanding. For homeowners who will reliably maintain a wood deck, the ongoing cost is manageable but real. For those who won’t consistently maintain it, composite pays for itself by avoiding deterioration. (For more on this, see Deck Material Comparison: Wood vs. Composite.)
Appearance Over Time
A freshly installed wood deck has an undeniable warmth and natural beauty that many homeowners prefer. Composite can mimic wood grain convincingly, and premium composite products look very good, but they don’t always replicate the authentic look of real wood to a discerning eye. The catch is that wood’s beautiful appearance requires consistent maintenance to sustain: an unmaintained wood deck grays, checks, and splinters. Composite maintains its appearance with minimal effort. The honest comparison is maintained wood versus composite, which is closer than maintained wood versus neglected wood. (For more on this, see Deck Maintenance: What Owners Need to Know.)
Longevity
A well-maintained wood deck lasts 15 to 25 years; a neglected one deteriorates significantly faster. Composite decking carries warranties of 25 years or more from premium manufacturers and generally outlasts wood with less care. The substructure (framing and joists) of any deck, typically pressure-treated lumber, has its own lifespan and maintenance requirements regardless of the decking surface material chosen.
Environmental Considerations
Pressure-treated lumber is chemically treated for rot and insect resistance. Composite is made from recycled wood fiber and plastic and is itself largely recyclable, though it’s a manufactured product. Cedar and redwood are naturally rot-resistant without chemical treatment. For homeowners for whom environmental considerations matter, composite from recycled content or naturally rot-resistant wood species like cedar and redwood are preferable to chemical treatment.
Making the Choice
Choose wood (pressure-treated or cedar) if upfront cost is primary and you’ll commit to regular maintenance. Choose composite if low maintenance is the priority and the higher upfront cost fits the budget, particularly if you plan to stay in the home long enough to recoup the premium. For many homeowners, the maintenance reality of a wood deck, factored over ten to twenty years, makes composite the better value even at higher initial cost. (For more on this, see How to Choose the Best Deck Design for Your Home.)
What Installation Differences Mean for the Final Product
Wood and composite decking differ not just in material properties but in how they’re installed, and those installation differences affect long-term performance. Wood decking expands and contracts with moisture changes and must be gapped appropriately to allow movement without buckling. Composite decking also expands and contracts, primarily with temperature, and has manufacturer-specified gapping requirements that differ from wood. Premium composite products use hidden fasteners that leave a clean, consistent surface; wood decking is typically face-fastened, which produces visible fastener heads that can rust or cause checking around the fastener over time with lower-quality fasteners.
The substructure, the joists and beams that support either decking type, is typically pressure-treated lumber regardless of the surface material chosen. Composite decking manufacturers often specify minimum joist spacing requirements that differ from wood decking, and using composite on a framing system designed for wood can void the composite warranty. This is one practical reason to work with a contractor experienced in composite installation rather than one who primarily builds wood decks and is adapting: the installation requirements for composite are specific and consequential, and a contractor unfamiliar with them produces an installation that performs worse than composite should. Premium composite products come with detailed installation instructions that a knowledgeable installer follows precisely, and that compliance is part of what the 25-year warranty assumes.
Deciding for Your Deck
Wood wins on upfront cost; composite wins on maintenance and longevity. The right choice depends on your budget, your maintenance commitment, and how long you plan to keep the deck. When you’re ready to talk options with a local contractor, connect below.
Cost figures on this page were checked against published pricing on August 23, 2026. How we source cost data.
Frequently Asked Questions
For most homeowners who factor in maintenance, yes. A complete composite deck costs $55 to $100/sq ft installed versus $40 to $70 for pressure-treated wood, but requires no staining or sealing while wood needs maintenance every two to three years. Over a 25-year deck life, the total cost difference often narrows substantially. If you won't consistently maintain a wood deck, composite is the better value.
A well-maintained wood deck lasts 15 to 25 years. Neglected, it deteriorates significantly faster, with boards checking, warping, and splintering within ten years. Composite carries warranties of 25 years or more and generally outlasts wood with less maintenance. The substructure (framing and joists) requires its own maintenance regardless of surface material.
Cleaning, sanding, and staining or sealing every two to three years to maintain appearance and prevent rot, warping, and splintering. Skipping maintenance accelerates deterioration and can lead to board replacement within ten years. Composite requires essentially no maintenance beyond periodic washing.
Premium composite mimics wood grain convincingly. It doesn't always replicate the look of real wood to a discerning eye, but it maintains its appearance without effort, while unmaintained wood grays and splinters. The honest comparison is maintained wood versus composite, which is closer than maintained versus neglected wood.
It depends on the wood. Pressure-treated lumber uses chemical treatment; cedar and redwood are naturally rot-resistant without chemicals. Composite is made from recycled wood fiber and plastic and is itself largely recyclable, making it preferable to chemically treated wood from an environmental standpoint, though it's a manufactured product.