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OSB vs Particleboard

Natural Material · grade comparison

OSB and Particleboard are both natural material grades. OSB is the stronger of the two: tensile strength 12 MPa (1.74 ksi) against 9 MPa (1.31 ksi) for Particleboard, about 33% more. OSB is the more ductile: elongation 1% versus 0.6% for Particleboard. OSB is lighter (0.64 g/cm³ vs 0.68 g/cm³ for Particleboard) and OSB is stiffer (3.5 GPa vs 2.4 GPa). On the shop floor, OSB machines more easily (excellent vs good).

OSBChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ParticleboardChoose it when the part sees heat.

OSB vs Particleboard: properties

OSBParticleboard

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

3.5 GPa0.51 Msi
2.4 GPa0.35 Msi

Shear Modulus

1.1 GPa0.16 Msi
1 GPa0.15 Msi

Tensile Strength (Ultimate)

12 MPa1.7 ksi
9 MPa1.3 ksi

Elongation at Break

1%
0.6%

Compressive Strength

16 MPa2.3 ksi
13 MPa1.9 ksi

Flexural Strength

22 MPa3.2 ksi
14 MPa2 ksi

Shear Strength

7 MPa0.99 ksi
7 MPa1 ksi

Fracture Toughness (K_IC)

0.65 MPa·√m0.59 ksi·√in
0.6 MPa·√m0.55 ksi·√in

Hardness, Mohs

—
2

Same in both: Poisson's Ratio 0.25

Physical

Density and transition temperatures.

Density

0.64 g/cm³0.02 lb/in³
0.68 g/cm³0.02 lb/in³

Porosity

57%
55%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.13 W/m·K0.08 BTU/hr·ft·°F
0.12 W/m·K0.07 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

7 µm/m·K3.9 µin/in·°F
8 µm/m·K4.4 µin/in·°F

Max Service Temperature (continuous)

60°C140 °F
70°C158 °F

Min Service Temperature

-50°C-58 °F
-40°C-40 °F

Same in both: Specific Heat Capacity 1,700 J/kg·K0.41 BTU/lb·°F

Electrical

Conductivity and insulation.

Dielectric Strength

—
2 kV/mm50.8 V/mil

Same in both: Electrical Resistivity 1×10⁸ Ω·m3.94×10¹⁵ µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

30 / 100
20 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

85 / 100
65 / 100

Polishability

12 / 100
15 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

15 MJ/kg6,449 BTU/lb
12 MJ/kg5,159 BTU/lb

Embodied Carbon (primary production)

0.45 kg CO₂/kg
0.75 kg CO₂/kg

Embodied Water

20 L/kg2.4 gal/lb
40 L/kg4.8 gal/lb

Typical Recycled Content

5%
40%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

19 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

5.5 MN·m/kg
3.5 MN·m/kg

Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every natural material grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

Manufacturing and finishing

CapabilityOSBParticleboard
Default condition——
Relative cost$ Budget$ Budget
Min. machined wall——
Best machined surface——

OSB vs Particleboard — frequently asked

Is OSB stronger than Particleboard?

Yes. OSB has a typical tensile strength of 12 MPa (1.74 ksi) against 9 MPa (1.31 ksi) for Particleboard — about 33% more.

Which is cheaper, OSB or Particleboard?

Both sit in the same relative cost tier ($, budget); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, OSB or Particleboard?

OSB. Its machinability rates excellent (85/100) against good (65/100) for Particleboard.

Ready to make it?

Upload a CAD file and FabDigit prices the part in OSB and Particleboard side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.