Composite vs. Wood Decking — Full Cost Breakdown & Comparison
Compare composite and wood decking costs over 20 years including materials, maintenance, installation, and lifespan. Find out which option saves you more money long-term.
The composite vs. wood debate is one of the most common questions in deck building. Both materials have passionate advocates, but the right choice depends on your budget, maintenance tolerance, climate, and how long you plan to stay in your home.
Upfront Material Costs
Pressure-treated lumber is the clear winner on initial cost at $2-$5 per linear foot for decking boards. Cedar costs $4-$8 per linear foot. Composite decking ranges from $5-$13 per linear foot depending on the brand and quality tier.
For a standard 12×16-foot deck (192 sq ft), decking boards alone cost approximately: pressure-treated pine $400-$900, cedar $750-$1,500, and composite $1,000-$2,500. That is 2-3x more for composite on day one.
Installation Costs
Labor costs are similar for both materials: $8-$22 per square foot depending on complexity. Composite hidden fastener systems add $0.50-$1.00 per square foot but create a cleaner look without visible screw heads. Wood decks use standard screws and are slightly faster to build.
The Real Cost: 20-Year Maintenance
This is where the calculation dramatically shifts. Wood decks require annual maintenance: power washing ($100-$300), staining or sealing ($500-$1,200 every 2-3 years), and board replacement as they warp, crack, or rot ($200-$500 per repair).
Over 20 years, a pressure-treated wood deck costs $6,000-$12,000 in maintenance alone. Cedar costs slightly less at $4,000-$8,000 since it resists rot better. Composite decks need only occasional soap-and-water cleaning — essentially $0 in maintenance.
20-Year Total Cost of Ownership
When you add initial construction ($3,000-$5,000 for wood, $5,000-$8,000 for composite) plus 20 years of maintenance, the totals converge: wood decks cost $9,000-$17,000 over 20 years, while composite decks cost $5,000-$8,000 total. Composite wins by $4,000-$9,000 over the lifecycle.
Climate Considerations
In wet, humid climates (Southeast US), wood decks deteriorate faster, making composite an even better value. In dry, mild climates (Southwest), wood holds up well and the cost difference narrows. In freeze-thaw climates (Northeast, Midwest), composite resists expansion and contraction better than wood.
The Bottom Line
If your budget is tight and you enjoy maintenance tasks, pressure-treated wood is a solid choice. If you want zero maintenance, plan to stay 10+ years, or live in a challenging climate, composite decking pays for itself within 7-10 years. Use our Deck Cost Calculator to compare options with your exact dimensions.