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Plastic PLA vs. Plywood

Compare Plastic PLA vs. Plywood strength, stiffness, weight and thermal properties.

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Plastic PLA3D printed (FDM)
PlywoodNatural
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Mechanical
Yield strength52.5MPasourcetypicalnot given (tensile used)
Ultimate tensile strength52.5MPasourcetypical, peak stress (= stress at yield)41.4MPasourcemodulus of rupture (no direct tensile value)
Flexural strength96.8MPasourcetypical41.4MPasourcestatic bending MOR (Douglas-fir); range 33.72-42.61 across species
Elongation at break7.8%sourcetypicalnot sourced
Young's modulus (stiffness)3.25GPasourcetypical7.45GPasourcestatic bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species
Density1,240kg/m³sourcetypicalnot sourced
Strength to weight42.3kN·m/kgnot sourced
Stiffness to weight2.62MN·m/kgnot sourced
Poisson's rationot sourcednot sourced
Shear modulusnot sourcednot sourced
Bulk modulusnot sourcednot sourced
Speed of sound1,619m/snot sourced
Thermal
Thermal conductivity0.13W/m·Ksourcebase material: NatureWorks Ingeo biopolymer, amorphous sheet, 25 °C0.12W/m·KsourceAPA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL
Thermal expansionnot sourced3.1–4.5µm/m·Ksourcebase material: solid wood parallel to grain, ovendry, range across species
100 mm part over a 50 °C swingnot sourced19µm growth
Specific heat1,200J/kg·Ksourcebase material: NatureWorks Ingeo biopolymer, amorphous sheet, 25 °C1,700J/kg·Ksourcebase material: solid wood (all species), 12% MC, 27 C
Heats up and cools (diffusivity)0.0874mm²/snot sourced
Thermal shock resistancenot sourcednot sourced
Melting point152°Csourcetypicalnot sourced
Glass transition59.1°Csourcetypicalnot sourced
Max service temperature58.8°CsourceHDT 0.455 MPa (printed specimens)not sourced
Values forUltimaker PLA, 3D-printed specimens, XY (flat) orientation; Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS dated April 20, 2022.Douglas-fir plywood sheathing (construction plywood per PS 1), static bending properties from USDA FPL Wood Handbook FPL-GTR-282 Ch. 12 Table 12-2 (Biblis 2000)

Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.

Plastic PLA is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is Plastic PLA stronger than Plywood?

Plastic PLA is stronger: its yield strength is 52.5 MPa against tensile strength 41.4 MPa for Plywood (27%).

Which is stiffer, Plastic PLA or Plywood?

Plywood is stiffer: Young's modulus 7.45 GPa against 3.25 GPa for Plastic PLA, so the same part in Plywood deflects less under the same load.

Which conducts heat better, Plastic PLA or Plywood?

Plastic PLA conducts heat better: 0.13 W/m·K against 0.12 W/m·K for Plywood.

Among 59 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelPlastic PLA
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickPlastic PLA
Strength against density

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