Cedar vs Pressure-Treated Wood
The two most popular outdoor lumber choices compared for decks, fences, raised beds, and more.
Last updated: May 2026
| Factor | Cedar | Pressure-Treated Pine |
|---|---|---|
| Cost (2×6×8 board) | $8–$15 | $4–$7 |
| Lifespan (outdoor) | 15–20 years | 20–30 years |
| Rot Resistance | Natural oils resist rot | Chemical treatment, very high |
| Insect Resistance | Natural repellent | Chemical repellent |
| Appearance | Beautiful warm reddish tone | Greenish tint, less attractive |
| Weight | Lightweight, easy to handle | Heavy (water-saturated) |
| Chemical Treatment | None (100% natural) | Copper-based preservatives |
| Garden Bed Safe | Fully safe for food gardens | Modern PT is EPA-approved but debated |
| Warping / Shrinkage | Minimal (dimensionally stable) | Warps and twists as it dries |
| Staining/Painting | Takes stain beautifully | Must dry 3–6 months before staining |
| Ground Contact | Not recommended | Rated for ground contact |
Cost Comparison
Pressure-treated lumber is roughly half the price of cedar. For a typical 50-foot privacy fence, the lumber cost difference is approximately $400–$600 between the two. For a 12×16 deck, cedar boards run $1,200–$2,000 more than pressure-treated. However, cedar requires less maintenance over time (it weathers gracefully without treatment), which narrows the lifetime cost gap.
Cedar: Pros & Cons
Pros
- Beautiful natural color and grain
- No chemicals — safe for garden beds
- Lightweight and easy to work with
- Naturally resists rot and insects
- Doesn't warp or twist like PT
- Can be stained immediately after purchase
Cons
- Roughly 2× the price of pressure-treated
- Softer wood — dents and scratches easier
- Not rated for ground contact
- Shorter lifespan than PT in wet conditions
- Availability varies by region
- Grays quickly without sealer
Pressure-Treated Pine: Pros & Cons
Pros
- Most affordable outdoor lumber option
- Extremely durable, especially in ground contact
- Longest lifespan for the price
- Widely available everywhere
- Harder wood — resists dents better
- Modern treatment (MCA/ACQ) is EPA-approved
Cons
- Greenish tint looks less natural
- Chemical treatment concerns for some users
- Warps and twists while drying
- Must wait months before staining
- Very heavy when freshly treated
- Can cause corrosion in standard fasteners
Which Should You Choose?
Choose Cedar If:
- You're building raised garden beds for growing food
- Appearance is important (visible fence, deck, pergola)
- You want to stain or finish the wood right away
- You prefer chemical-free, natural materials
Choose Pressure-Treated If:
- Budget is the top priority
- The wood will be in ground contact (posts, retaining walls)
- You need maximum structural durability
- The wood won't be highly visible (framing, substructure)
Ready to Plan Your Project?
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Decking Calculator → Fence Calculator →Frequently Asked Questions
Cedar is better when appearance and chemical-free construction matter — it has a warm natural color, stays dimensionally stable without warping, and is the safer choice for raised garden beds. Pressure-treated pine is better for budget builds and any ground-contact application like fence posts, where it lasts 20–30 years versus cedar's 15–20. A common approach is cedar for visible surfaces and pressure-treated for posts and framing.
Cedar costs roughly twice as much: a 2×6×8 cedar board runs $8–$15 versus $4–$7 for pressure-treated pine. On a typical 50-foot privacy fence that adds about $400–$600 in lumber costs, and on a 12×16 deck cedar runs $1,200–$2,000 more. Cedar's lower maintenance needs — it weathers gracefully without treatment — narrow the lifetime cost gap somewhat.
Pressure-treated pine lasts longer outdoors — typically 20–30 years versus 15–20 years for cedar — thanks to its copper-based chemical preservatives. Pressure-treated is also the only one of the two rated for ground contact; cedar touching soil will rot much faster. Above ground and well maintained, both can reach the upper end of their ranges.