Home / Wood Compare / Scots Pine vs Spruce-Pine-Fir SPF
Professional Comparison · Verified Engineering Data · Updated 19 July 2026
Scots Pine VS Spruce-Pine-Fir SPF
Which wood is better for your project? Scores are computed from the verified figures on each species page — how we score.
🥇
Scots Pine
36/100 Library Score
🌲Softwood💧Moisture Stable
- Stronger in bending (MOR 83.0 vs 63.0 MPa)
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Spruce-Pine-Fir SPF
26/100 Library Score
🌲Softwood💧Moisture Stable
- Easier to machine and fasten
- Lighter (0.42 vs 0.49 g/cm³)
- Solid choice where its profile fits the project
Visual comparison
Scots PineSpruce-Pine-Fir SPF
Winner by category
There isn't one universally best wood — there's a best wood for each purpose.
| Category | Winner |
|---|---|
| Durability | Tie |
| Stability | Tie |
| Hardness | Scots Pine |
| Strength (MOR) | Scots Pine |
| Stiffness (MOE) | Scots Pine |
| Flame spread | Tie |
| Machining ease | Spruce-Pine-Fir SPF |
| Lightness | Spruce-Pine-Fir SPF |
Engineering data
| Property | Scots Pine | Spruce-Pine-Fir SPF |
|---|---|---|
| Janka Hardness | 540WD lbf | 510grade lbf |
| Density | 0.49WD g/cm³ | 0.42grade g/cm³ |
| MOE | 10.1WD GPa | 9.5grade GPa |
| MOR | 83.0WD MPa | 63.0grade MPa |
| Durability | Class 4 Slightly Durable | Class 4 Slightly Durable |
| Stability | Excellent | Excellent |
| Fire (E84) | Class C indicative | Class C indicative |
| Radial Shrink | 5.2WD % | 4.4grade % |
| Tangential Shrink | 8.3WD % | 7.4grade % |
| T/R Ratio | 1.6 | 1.68 |
Figures carry the same source status as the species pages they come from — verified where cited, indicative where marked.
Best for
| Application | Recommended | Suitability |
|---|---|---|
| Exterior cladding | 🥇 Spruce-Pine-Fir SPF | ★★★☆☆ |
| Flooring / wear surfaces | 🥇 Scots Pine | ★★☆☆☆ |
| Furniture / interior joinery | 🥇 Spruce-Pine-Fir SPF | ★★★★☆ |
| Structural / load-bearing | 🥇 Scots Pine | ★★☆☆☆ |
Advantages & limitations
Scots Pine
Advantages
- Very low movement in service
- Easy to machine, glue and fasten
- Lightweight — easy handling and installation
Limitations
- Not durable outdoors untreated (Class 4)
- Soft surface — dents under point loads
Spruce-Pine-Fir SPF
Advantages
- Very low movement in service
- Easy to machine, glue and fasten
- Lightweight — easy handling and installation
Limitations
- Not durable outdoors untreated (Class 4)
- Soft surface — dents under point loads
Recommendation
Choose Scots Pine if…
- You want the stronger all-round engineering profile
Choose Spruce-Pine-Fir SPF if…
- Ease of working and fastening matters
- Weight matters — ceilings, wall panels, transport
- Its profile matches the application better than a single overall score
Frequently asked questions
Which is more durable, Scots Pine or Spruce-Pine-Fir SPF?
Neither — both carry the same EN 350 rating (Class 4, Slightly Durable). For outdoor decisions between them, weigh dimensional stability and hardness instead.
Which wood is better for outdoor use?
They are closely matched outdoors — durability and stability come out almost level. Let the application decide: harder surface for decking traffic, lighter weight for cladding.
Is Scots Pine harder than Spruce-Pine-Fir SPF?
Yes — Janka 540 lbf vs 510 lbf.
How we score. Each wood gets a weighted composite of the verified figures shown above: durability 22%, stability 18%, hardness 12%, bending strength 12%, machining ease 12%, stiffness 8%, flame spread 8%, lightness 8%. The Library Score is that composite's percentile rank within our 60-species library — 50 means the library median, 90 means it outperforms nine of every ten species we cover. No price data is scored — cost guidance is qualitative. The score summarises the data; it does not replace judgement about your specific application.