Introduction
Material choice is the single biggest lever on a deck’s budget — and its lifespan, maintenance load, and appearance. A pressure-treated deck and a composite deck of identical size can differ by $10,000 or more installed, yet over 25 years their total costs can converge once staining and replacement are counted. Choosing well means comparing true system costs, not board prices.
The Deck Cost Calculator prices each material tier as a complete system — decking, matching fasteners, and railing — so you can compare honest totals. This guide explains what each material is, what it costs, and where it fits.
Decking Surface Materials
Pressure-treated pine
The budget standard: pine impregnated with preservatives against rot and insects. Typical planning cost $0.70–$2.00 per lineal ft ($2.30–$6.55 per lineal m) for 2×6 decking. Pros: lowest upfront cost, widely available, easy to work. Cons: requires staining or sealing every 2–4 years, prone to warping, splitting, and splinters, 15–20 year typical life. Best for: tight budgets and DIY builders comfortable with maintenance. Note: use fasteners rated for treated lumber — standard steel corrodes in contact with modern treatments.
Cedar and redwood
Naturally rot-resistant softwoods with rich color. Typical planning cost $1.50–$3.00 per lineal ft ($4.90–$9.85 per lineal m). Pros: beautiful natural appearance, lighter than treated pine, naturally resistant to insects. Cons: still needs periodic sealing to hold color (grays without it), softer surface dents more easily, 15–25 year life, regional availability varies (redwood is western-US centric). Best for: homeowners who want natural wood aesthetics with less chemical treatment.
Composite decking
Wood fiber + recycled plastic boards, often with a protective polymer cap. Typical planning cost $2.50–$5.00 per lineal ft ($8.20–$16.40 per lineal m) mid-range. Pros: no staining, resists rot/splinters/insects, 25–30+ year life, consistent dimensions. Cons: roughly 2× the upfront cost of treated, requires hidden fastener clips (pricier than screws), can get hot in direct sun, some early-generation products had fading issues (capped products largely solved this). Best for: low-maintenance priorities and long ownership horizons.
PVC decking
All-plastic boards — no wood fiber. Typical planning cost $4.00–$7.00+ per lineal ft. Pros: maximum moisture and stain resistance, lightweight, long life. Cons: highest cost tier, can feel less “woody,” thermal expansion needs careful gapping. Best for: poolside and wet climates where moisture resistance is paramount.
Tropical hardwoods (ipe and similar)
Extremely dense, naturally durable hardwoods. Cost varies widely by market and availability — typically at or above premium composite. Pros: 25+ year life, exceptional hardness and fire resistance, rich appearance. Cons: very heavy and hard to work (pre-drilling required), needs oiling to hold color, sustainability sourcing matters — verify certified sourcing. Best for: high-end builds where longevity justifies the labor premium.
| Material | Typical $/lf | Maintenance | Typical life |
|---|---|---|---|
| Pressure-treated pine | $0.70–$2.00 | Stain/seal every 2–4 yrs | 15–20 yrs |
| Cedar / redwood | $1.50–$3.00 | Seal every 2–3 yrs | 15–25 yrs |
| Composite (mid-range) | $2.50–$5.00 | Wash only | 25–30+ yrs |
| PVC | $4.00–$7.00+ | Wash only | 25–30+ yrs |
| Tropical hardwood | Premium | Oil to hold color | 25+ yrs |
Framing Lumber
Nearly all residential decks frame with pressure-treated lumber regardless of decking tier: treated 2×8 or 2×10 joists, built-up or solid beams, 4×4 or 6×6 posts. Typical planning cost $1.00–$3.00 per lineal ft by dimension. Steel framing exists as a premium option (straighter, longer spans) but costs several times more and needs compatible fasteners. Size framing to actual span requirements — oversizing wastes money across the whole frame, as the pro tips guide explains.
Railing Systems
Railing deserves material deliberation equal to decking — it’s the highest-variance line in the budget:
- Wood railing ($15–$35/lf materials): matches wood decks, needs the same maintenance as the decking. The economical default.
- Composite rail kits ($40–$80/lf): match composite decking, low maintenance, straightforward install from manufacturer kits.
- Aluminum railing ($60–$120/lf): slim profiles, minimal view obstruction, powder-coated durability.
- Cable railing ($60–$150+/lf): near-invisible for views; requires precise tensioning and compatible posts — labor-intensive to install correctly.
Mixed strategies are legitimate: premium railing on the view side, wood elsewhere. Price each run separately.
Fasteners and Hardware
Match fasteners to materials: coated or stainless screws for treated lumber (~$0.05–$0.15 each); hidden clip systems for composite (~$0.50–$1.00 each); manufacturer-specified fasteners for PVC. Structural hardware — joist hangers, post bases, hurricane ties, ledger fasteners — must be rated for exterior/treated-lumber contact. Fastener failure is structural failure; this is never the line to economize. The cost guide budgets the full hardware line.
True System Cost Comparison
For a 320 sq ft (29.7 m²) deck with 52 lineal ft of railing, materials-only system totals at planning rates:
| System | Decking | Railing | Fasteners/hardware | System total |
|---|---|---|---|---|
| PT deck + wood rail | ~$900 | ~$1,200 | ~$300 | ~$2,400 |
| Cedar deck + cedar rail | ~$1,900 | ~$2,000 | ~$350 | ~$4,250 |
| Composite + composite rail | ~$3,700 | ~$4,500 | ~$700 | ~$8,900 |
(Framing, footings, and permits add roughly equally across tiers.) Notice how the railing line amplifies the tier gap: the composite system’s premium is as much about railing and clips as boards. And factor maintenance: 25 years of stain/seal cycles on the PT system narrows the lifetime gap considerably. The DIY vs pro guide adds the labor dimension to these system totals.
How to Choose
Decide on three axes: upfront budget (PT wins), maintenance tolerance (composite/PVC wins), and ownership horizon (longer horizon favors durable materials). Climate matters too: wet climates punish wood maintenance schedules; intense sun punishes dark composites on bare feet. There is no universally “best” material — only the best fit for your budget, climate, and patience. Check your local requirements too: some jurisdictions restrict certain materials or require specific fire ratings.
Related Guides
- Deck Cost Guide — component pricing behind these system totals.
- Complete Deck Cost Guide — the full estimating overview.
- Pro Tips — buying strategies for every material tier.
- DIY vs Pro — how labor interacts with material choice.
- FAQ — quick answers on materials and costs.
Get Your Number
Pick your material tier using the comparisons above, then price it as a complete system — decking, railing, fasteners, framing — in the Deck Cost Calculator. Take the resulting line items to local suppliers: planning ranges get you oriented, but only local prices finalize the decision.
Disclaimer: Calculator results are planning estimates based on the dimensions and selections you enter. Actual deck costs vary with regional pricing, site conditions, design complexity, and labor markets. Verify quantities and prices with local suppliers and contractors, and consult a licensed professional or local building authority for structural, permit, and code-related decisions.
