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Cedar vs Redwood

Natural Material · grade comparison

Cedar and Redwood are both natural material grades. Redwood is the stronger of the two: tensile strength 70 MPa (10.2 ksi) against 55 MPa (7.98 ksi) for Cedar, about 27% more. Cedar is lighter (0.37 g/cm³ vs 0.42 g/cm³ for Redwood) and Redwood is stiffer (9.6 GPa vs 7.7 GPa). On the shop floor, Redwood sits in a lower cost tier (standard, $$) than Cedar (premium, $$$).

CedarChoose it when weight is the constraint.

RedwoodChoose it when strength drives the design, or when cost is the deciding factor.

Cedar vs Redwood: properties

CedarRedwood

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

7.7 GPa1.1 Msi
9.6 GPa1.4 Msi

Shear Modulus

0.5 GPa0.07 Msi
0.85 GPa0.12 Msi

Poisson's Ratio

0.37
0.36

Tensile Strength (Ultimate)

55 MPa8 ksi
70 MPa10.2 ksi

Compressive Strength

31 MPa4.6 ksi
42 MPa6.1 ksi

Flexural Strength

52 MPa7.5 ksi
69 MPa10 ksi

Shear Strength

7 MPa0.99 ksi
7 MPa0.94 ksi

Same in both: Elongation at Break 1% · Fracture Toughness (K_IC) 0.4 MPa·√m0.36 ksi·√in

Physical

Density and transition temperatures.

Density

0.37 g/cm³0.01 lb/in³
0.42 g/cm³0.02 lb/in³

Porosity

74%
72%

Thermal

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

Thermal Conductivity

0.09 W/m·K0.05 BTU/hr·ft·°F
0.11 W/m·K0.06 BTU/hr·ft·°F

Specific Heat Capacity

1,600 J/kg·K0.38 BTU/lb·°F
1,400 J/kg·K0.33 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

4 µm/m·K2.2 µin/in·°F
3.5 µm/m·K1.9 µin/in·°F

Max Service Temperature (continuous)

65°C149 °F
70°C158 °F

Same in both: Min Service Temperature -60°C-76 °F

Electrical

Conductivity and insulation.

Dielectric Strength

1.5 kV/mm38.1 V/mil
—

Same in both: Electrical Resistivity 1×10⁹ Ω·m3.94×10¹⁶ µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 80 / 100

Manufacturability

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

Polishability

45 / 100
55 / 100

Same in both: Machinability 90 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

9 MJ/kg3,654 BTU/lb
9 MJ/kg3,869 BTU/lb

Typical Recycled Content

0%
8%

Same in both: Embodied Carbon (primary production) 0.45 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

149 kN·m/kg
167 kN·m/kg

Specific Stiffness (E / density)

20.8 MN·m/kg
22.9 MN·m/kg

Same in both: Thermal Diffusivity 0.2 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

CapabilityCedarRedwood
Default condition——
Relative cost$$$ Premium$$ Standard
Min. machined wall——
Best machined surface——

Cedar vs Redwood — frequently asked

Is Redwood stronger than Cedar?

Yes. Redwood has a typical tensile strength of 70 MPa (10.2 ksi) against 55 MPa (7.98 ksi) for Cedar — about 27% more.

Which is cheaper, Cedar or Redwood?

Redwood is the lower-cost material: it sits in the standard tier ($$) while Cedar is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

When should I choose Cedar over Redwood?

Pick Cedar when weight is the constraint. Pick Redwood when strength drives the design, or when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Cedar and Redwood 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.