Treated lumber costs in the United States vary by dimensions, species, and treatment method. The main cost drivers are size, grade, treatment level, shipping, and local demand. This guide provides practical price ranges in USD and explains where the money goes.
Assumptions: region, typical dimensions for residential framing, standard CCA- or AWPA-type pressure treatment.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 2×4 Treated Lumber (per linear ft) | $1.20 | $1.70 | $2.40 | Southern yellow pine commonly used; basic treatment |
| 2×6 Treated Lumber (per linear ft) | $1.60 | $2.60 | $3.80 | Often needed for deck rails and headers |
| 5/4×4 or 4×4 Posts (per linear ft) | $2.00 | $3.20 | $4.50 | Common for fences and small decks |
| Board Foot (BF) equivalent pricing | $0.90 | $1.40 | $2.10 | Higher for select species; price includes basic treatment |
| Delivery/Handling | $50 | $125 | $400 | Distance and order size drive cost |
Overview Of Costs
Costs for treated lumber typically range from about $1.20 to $3.80 per linear foot, depending on size, processing, and regional factors. For a standard project such as a small deck frame using 2×6 boards, expect about $2.60 per linear foot on average, plus delivery. Larger posts and higher-grade lumber push totals higher. data-formula=”labor_hours × hourly_rate”> For board-foot pricing, plan around $0.90 to $2.10 per BF, with regional shifts based on supply and treatment type.
Cost Breakdown
| Materials | Labor | Equipment | Permits | Delivery/Disposal | Warranty |
|---|---|---|---|---|---|
| $1.20-$3.80 per linear ft (varies by size & treatment) | $0.50–$1.50 per linear ft | $0.10–$0.50 per linear ft | $0–$100 | $50–$400 | Limited corruption warranty from supplier |
What Drives Price
Dimension, species, and treatment level are the primary price drivers. Larger dimensions (2×6, 5/4×4) cost more per linear foot and per board foot. Species differences (pine vs. hemlock, or cypress in some regions) affect base price before treatment. The type and depth of treatment (ACQ, CCA legacy, or low-toxicity options) also impact cost and availability. Local demand, logistics, and seasonality influence price volatility, especially during peak construction months.
Ways To Save
Lock in pricing with bulk purchases or contractors offering bundled materials. Compare pre-cut packs versus full-length boards to minimize waste. Consider alternatives like partially treated headers with additional protective coatings where allowed by code. Ordering ahead for seasonal sales and selecting standard sizes over niche profiles can lower costs.
Regional Price Differences
Regional markets show meaningful variation in treated lumber pricing. In the Northeast, higher processing costs and shipping to dense markets can push prices above national averages. The Midwest benefits from strong local mills and lower freight, often yielding reduced per-foot rates for common dimensions. The South generally has lower base timber costs but may incur higher delivery fees for remote rural areas. Expect about a ±10% to ±20% delta between Urban, Suburban, and Rural locations depending on supply, demand, and local taxes.
Labor, Hours & Rates
Labor costs for installation are separate from material prices and depend on crew size and project complexity. A typical deck frame may require 6–12 hours of labor for two workers, with rates ranging from $40–$85 per hour per worker in many markets. If the project uses more intricate joinery or higher-grade lumber, labor hours increase accordingly. Labor estimates should be added on top of material costs to form a complete price.
Additional & Hidden Costs
Hidden costs can include moisture protection, fasteners, and protective coatings. Fasteners (galvanized or stainless), post bases, and preservative coatings add $0.20–$0.80 per linear foot. If treatment requires special packaging or yard handling, add 5–15% for handling surcharges. Some regions impose stacking or disposal fees for treated scrap, which should be accounted for in project budgeting.
Real-World Pricing Examples
Three scenario cards illustrate typical project pricing for treated lumber.
Basic Scenario — Small deck frame, 2×6, standard PT pine, mid-range grade. Specs: 240 linear ft of 2×6 at $2.20/ft, delivery $120, basic fasteners $40, labor 8 hours @ $50/hr. Total: about $600 + $2.20×240 = $528 (materials) + $120 + $40 + $400 = $1,088. Per square foot (for a 120 ft2 deck) ≈ $9.07. Assumptions: suburban region, standard climate, mainline supplier.
Mid-Range Scenario — Medium-sized deck with posts and rails, 2×6 and 5/4×4 components, AWPA-treated. Specs: 420 linear ft of 2×6 at $2.60/ft, 60 ft of 5/4×4 at $3.20/ft, delivery $180, hardware $120, labor 14 hours @ $60/hr. Total: materials $2,?; 2×6: $1,092, 5/4×4: $192, delivery $180, hardware $120, labor $840. Estimated total ≈ $2,424. Per ft ≈ $5.78. Assumptions: coast-to-coast supplier mix, standard season.
Premium Scenario — Large deck frame with high-grade post material and deeper treatment, 2×6 and 4×4 posts, higher-end fasteners. Specs: 600 linear ft of 2×6 at $3.20/ft, 100 ft of 4×4 posts at $4.00/ft, delivery $260, premium fasteners $180, labor 24 hours @ $70/hr. Total: materials $1,920 + $400 + $260 + $180, labor $1,680. Estimated total ≈ $4,440. Per ft ≈ $7.40. Assumptions: urban market, premium treatment, extended warranty.
Price By Region
Three regional snapshots show typical price bands. In Urban areas, materials may run higher by 15–25% due to logistics and demand. Suburban markets usually hover near national averages with moderate markups for delivery. Rural regions can see lower base lumber costs but higher delivery or whole-project transportation costs. Expect a regional delta of about −10% to +20% for common sizes, with larger boards or specialty treatments causing outsized shifts.