Composite OSB. Wood-OSB prices, bamboo performance.
Fifty percent Moso bamboo, fifty percent plantation poplar. The hybrid that brings BAMOSB-class performance to the wood-OSB price point. Engineered for the projects where cost matters as much as sustainability.
A 50/50 hybrid that does not compromise on either material.
Two materials, one structural panel.
Composite OSB is what happens when you blend BAMOSB's bamboo-strand top and bottom face layers with a poplar strand core. You keep the bamboo's high tensile strength on the surfaces — where the panel needs to resist bending — and use the lower-cost poplar in the middle, where it handles shear.
The result: 90% of the structural performance of our flagship BOSB-S18, at 70% of the cost. EN 300 OSB3 certified. 100% zero-formaldehyde adhesive. Net negative carbon footprint.
Bamboo faces, poplar core.
Composite vs flagship vs conventional.
BAMOSB Composite
- EN 300 OSB3 · 30+ MPa MOR
- 50% bamboo / 50% poplar
- Wood-OSB price tier
- 0% formaldehyde
- Net negative carbon
BOSB-S18 (100% bamboo)
- EN 300 OSB4 · 50+ MPa MOR
- 100% Moso bamboo
- Premium tier (~30% higher)
- 0% formaldehyde
- Strongest carbon story
The full spec sheet.
The applications for Composite OSB.
Specify Composite OSB for cost-sensitive projects.
Engineering data
Measured values are third-party laboratory tests on standard 18 mm samples (EN 310 / EN 317 / EN 300 OSB4 protocol, 10% equilibrium moisture). The “target” column tracks the development roadmap being independently re-tested Q4 2026; current lot data ships on every spec sheet.
| Bending strength (MOR), 18 mm main axis | 50+ MPa (18 mm measured, 3rd-party) · Target ≥ 70 MPa (target · Q4 2026 re-test) |
|---|---|
| Modulus of elasticity (MOE), 18 mm | 9 GPa |
| Thickness swelling, 24 h immersion | < 6.5% (EN 317) |
| Formaldehyde emission | 0 ppm UF · E0 (3rd-party verified) |
| Density | 800 kg/m³ |
| Standard size | 0 · Custom cuts available |
Source: BAMOSB Internal QC + Breverified 3rd-party lab (TÜV Rheinland / SGS / equivalent). Spec sheets download per-lot.