Home / Wood Compare / Paulownia vs Bamboo Structural Engineered
Professional Comparison · Source-attributed engineering data · Updated 19 July 2026
Paulownia VS Bamboo Structural Engineered
Which wood is better for your project? Scores are computed from the verified figures on each species page — how we score.
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Paulownia
14/100 Library Score
🪵Hardwood💧Moisture Stable🌿Sustainable
- Better dimensional stability (Excellent vs Moderate)
- Easier machining and fastening (lower density/hardness)
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Bamboo Structural Engineered
9/100 Library Score
🌿Sustainable
- Harder wear surface
- Solid choice where its profile fits the project
Visual comparison
PaulowniaBamboo Structural Engineered
Winner by category
There isn't one universally best wood — there's a best wood for each purpose.
| Category | Winner |
|---|---|
| Durability | Tie |
| Stability | Paulownia |
| Hardness | Bamboo Structural Engineered |
| Strength (MOR) | Bamboo Structural Engineered |
| Stiffness (MOE) | Bamboo Structural Engineered |
| Flame spread | Tie |
| Machining ease | Paulownia |
| Lightness | Paulownia |
Engineering data
| Property | Paulownia | Bamboo Structural Engineered |
|---|---|---|
| Janka Hardness | 300WD lbf | 1380 lbf |
| Density | 0.28WD g/cm³ | 0.6 g/cm³ |
| MOE | 4.38WD GPa | 10.0 GPa |
| MOR | 38.0WD MPa | 100.0 MPa |
| Durability | Class 4 Slightly Durable | Class 4 Slightly Durable |
| Stability | Excellent | Moderate |
| Fire (E84) | Class C indicative | Class C indicative |
| Radial Shrink | 2.4WD % | 4 % |
| Tangential Shrink | 3.9WD % | 8 % |
| T/R Ratio | 1.62 | 2.0 |
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 | 🥇 Paulownia | ★★★☆☆ |
| Flooring / wear surfaces | 🥇 Bamboo Structural Engineered | ★★★☆☆ |
| Furniture / interior joinery | 🥇 Paulownia | ★★★★★ |
| Structural / load-bearing | 🥇 Bamboo Structural Engineered | ★★☆☆☆ |
Advantages & limitations
Paulownia
Advantages relative to Bamboo Structural Engineered
- Density is 0.28 g/cm³ vs 0.60 — about half the weight for the same volume
- Radial shrinkage 2.4% vs 4.0% and tangential 3.9% vs 8.0% — much less movement in service
Limitations relative to Bamboo Structural Engineered
- Janka is 300 lbf vs 1,380 lbf, about 4.6× lower
- MOR is 38 MPa vs 100 MPa, about 62% lower
- MOE is 4.4 GPa vs 10 GPa, about 56% lower
Bamboo Structural Engineered
Advantages relative to Paulownia
- Janka is 1,380 lbf vs 300 lbf, about 4.6× higher
- MOR is 100 MPa vs 38 MPa, about 2.6× higher
- MOE is 10 GPa vs 4.4 GPa, about 2.3× higher
Limitations relative to Paulownia
- Radial shrinkage 4.0% vs 2.4% and tangential 8.0% vs 3.9% — greater movement on both axes
Recommendation
Choose Paulownia if…
- Lightweight or interior use is the requirement — tansu chests, panel cores, surfboard cores, or soundboard interiors
- Dimensional stability matters and structural loading is minimal
Choose Bamboo Structural Engineered if…
- The application is load-bearing — structural framing, laminated beams, flooring, or trusses
- Surface hardness and stiffness are the deciding factors
Frequently asked questions
Which is more durable, Paulownia or Bamboo Structural Engineered?
Neither — both carry the same EN 350 rating (Class 4, Slightly Durable). For outdoor work the separation is movement, not decay: Paulownia moves 3.9% tangentially against 8.0%, which decides board width and fixing spacing more than the durability class does.
Which wood is better for outdoor use?
Paulownia — outdoor performance combines decay durability with dimensional stability, and it leads on that combination.
Is Paulownia harder than Bamboo Structural Engineered?
No — Bamboo Structural Engineered is harder (Janka 1380 vs 300 lbf).
How we score. The Library Scores are percentile ranks against the other 59 species we cover — durability and stability carry the most weight, and no price data enters the calculation. Full weighting and what it excludes.