Free STEP Models

STEP solid models, which open in SolidWorks, Fusion, Inventor, FreeCAD and every other CAD system. Every file here is public domain: open it in your browser, then download it or export it to another format.

3481 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

All 715Mechanical 234Fasteners & hardware 184Lighting 115Architecture & BIM 76Electronics & PCB 57Tools & jigs 57Furniture & interiors 22Vehicles 11
Features:Real-world scale 715Assembly 463Low-poly 57CAD solid 715

715 3D parts as STEP · Clear all

  • Alternating-tread ship ladderstepRotate in 3D
    Alternating-tread ship ladder

    Alternating-tread ship ladder. Overall size 1.593 x 0.760 x 3.134 m; original unbranded model. Overall 1.6 x 0.8 x 3.1 m. Nominal size: 650 mm wide. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    515 KBDetails & download
  • Steel industrial stair with grating treadsstepRotate in 3D
    Steel industrial stair with grating treads

    Steel industrial stair with grating treads. Overall size 3.703 x 1.220 x 3.027 m; original unbranded model. Overall 3.7 x 1.2 x 3 m. Nominal size: 1200 mm wide. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    4.0 MBDetails & download
  • Exterior concrete steps with handrailsstepRotate in 3D
    Exterior concrete steps with handrails

    Exterior concrete steps with handrails. Overall size 1.843 x 1.200 x 1.719 m; original unbranded model. Overall 1843 x 1200 x 1719 mm. Nominal size: 1200 mm wide. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    308 KBDetails & download
  • 3.6 m wall handrail with returnsstepRotate in 3D
    3.6 m wall handrail with returns

    3.6 m wall handrail with returns. Overall size 3.638 x 0.089 x 0.102 m; original unbranded model. Overall 3.6 x 0.1 x 0.1 m. Nominal size: 3.6 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    114 KBDetails & download
  • 2.4 m wall handrail with returnsstepRotate in 3D
    2.4 m wall handrail with returns

    2.4 m wall handrail with returns. Overall size 2.438 x 0.089 x 0.102 m; original unbranded model. Overall 2.4 x 0.1 x 0.1 m. Nominal size: 2.4 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    92 KBDetails & download
  • 1.2 m wall handrail with returnsstepRotate in 3D
    1.2 m wall handrail with returns

    1.2 m wall handrail with returns. Overall size 1.238 x 0.089 x 0.102 m; original unbranded model. Overall 1238 x 89 x 102 mm. Nominal size: 1.2 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    69 KBDetails & download
  • 2.4 m post-mounted guard with balustersstepRotate in 3D
    2.4 m post-mounted guard with balusters

    2.4 m post-mounted guard with balusters. Overall size 2.510 x 0.110 x 1.100 m; original unbranded model. Overall 2.5 x 0.1 x 1.1 m. Nominal size: 2.4 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    307 KBDetails & download
  • 2.4 m glass balustrade with top railstepRotate in 3D
    2.4 m glass balustrade with top rail

    2.4 m glass balustrade with top rail. Overall size 2.510 x 0.110 x 1.100 m; original unbranded model. Overall 2.5 x 0.1 x 1.1 m. Nominal size: 2.4 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    308 KBDetails & download
  • 2.4 m dual-height accessible handrailstepRotate in 3D
    2.4 m dual-height accessible handrail

    2.4 m dual-height accessible handrail. Overall size 2.510 x 0.139 x 0.950 m; original unbranded model. Overall 2.5 x 0.1 x 0.9 m. Nominal size: 2.4 m. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    168 KBDetails & download
  • V-belt pulley pair with continuous beltstepRotate in 3D
    V-belt pulley pair with continuous belt

    V-belt pulley pair with continuous belt. Overall size 0.420 x 0.180 x 0.032 m; original unbranded model. Overall 420 x 180 x 32 mm. Nominal size: 180 / 100 mm. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    151 KBDetails & download
  • Automotive starter motorstepRotate in 3D
    Automotive starter motor

    Automotive starter motor. Overall size 0.166 x 0.094 x 0.269 m; original unbranded model. Overall 166 x 94 x 269 mm. Nominal size: 88 mm body. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    408 KBDetails & download
  • Serpentine belt spring tensionerstepRotate in 3D
    Serpentine belt spring tensioner

    Serpentine belt spring tensioner. Overall size 0.188 x 0.102 x 0.073 m; original unbranded model. Overall 188 x 102 x 73 mm. Nominal size: 74 mm idler. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    196 KBDetails & download
  • 620 mm automotive radiator with six-blade fanstepRotate in 3D
    620 mm automotive radiator with six-blade fan

    620 mm automotive radiator with six-blade fan. Overall size 0.636 x 0.119 x 0.460 m; original unbranded model. Overall 636 x 119 x 460 mm. Nominal size: 636 x 460 mm. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1018 KBDetails & download
  • Vented automotive alternatorstepRotate in 3D
    Vented automotive alternator

    Vented automotive alternator. Overall size 0.228 x 0.150 x 0.157 m; original unbranded model. Overall 228 x 150 x 157 mm. Nominal size: 150 mm body. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    876 KBDetails & download
  • 17 inch five-spoke alloy wheel and tyrestepRotate in 3D
    17 inch five-spoke alloy wheel and tyre

    17 inch five-spoke alloy wheel and tyre. Overall size 0.634 x 0.634 x 0.233 m; original unbranded model. Overall 634 x 634 x 233 mm. Nominal size: 225/45 R17. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    361 KBDetails & download
  • 15 inch vented steel wheel and tyrestepRotate in 3D
    15 inch vented steel wheel and tyre

    15 inch vented steel wheel and tyre. Overall size 0.634 x 0.634 x 0.203 m; original unbranded model. Overall 634 x 634 x 203 mm. Nominal size: 195/65 R15. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    948 KBDetails & download
  • 320 mm vented brake disc with caliperstepRotate in 3D
    320 mm vented brake disc with caliper

    320 mm vented brake disc with caliper. Overall size 0.338 x 0.320 x 0.082 m; original unbranded model. Overall 338 x 320 x 82 mm. Nominal size: 320 x 28 mm. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    752 KBDetails & download
  • 280 mm solid brake discstepRotate in 3D
    280 mm solid brake disc

    280 mm solid brake disc. Overall size 0.280 x 0.280 x 0.050 m; original unbranded model. Overall 280 x 280 x 50 mm. Nominal size: 280 x 12 mm. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    48 KBDetails & download
  • 280 mm brake drumstepRotate in 3D
    280 mm brake drum

    280 mm brake drum. Overall size 0.280 x 0.280 x 0.079 m; original unbranded model. Overall 280 x 280 x 79 mm. Nominal size: 280 mm. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    78 KBDetails & download
  • Escalator with grooved stepsstepRotate in 3D
    Escalator with grooved steps

    Escalator with grooved steps, modeled from published dimensions. Overall 6.8 x 1.3 x 4.3 m. Key dimensions: rise 3000 mm; inclined run 5200 mm; tread width 1000 mm; visible steps 20; landing length 800 mm. Original static escalator coordination model. Return track, concealed drive and step chain are omitted; handrails show the visible upper path only. No machinery certification, capacity, accessibility or code compliance is implied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    12.8 MBDetails & download
  • Elevator cabin, open doorsstepRotate in 3D
    Elevator cabin, open doors

    Elevator cabin, open doors, modeled from published dimensions. Overall 1.8 x 1.6 x 2.4 m. Key dimensions: internal width 1700 mm; door clear width 1030 mm; ceiling omitted for review true. Original cabin layout with open doors and ceiling omitted for inspection. Shaft, drive, door mechanism and control circuitry are omitted. No accessibility, lift certification or code compliance is implied. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    197 KBDetails & download
  • 1200 x 800 mm wooden palletstepRotate in 3D
    1200 x 800 mm wooden pallet

    1200 x 800 mm wooden pallet, modeled from published dimensions. Overall 1200 x 800 x 144 mm. Key dimensions: boards 11; blocks 9. EPAL reference establishes the 1200 x 800 x 144 mm envelope and 11-board/9-block arrangement. Board/block cross-sections are original simplified nominal choices; nails and certification markings are omitted. This unmarked library model is not an EPAL-certified pallet. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    328 KBDetails & download
  • 1000-liter-class IBC totestepRotate in 3D
    1000-liter-class IBC tote

    1000-liter-class IBC tote, modeled from published dimensions. Overall 1200 x 1115 x 1148 mm. Key dimensions: nominal capacity class l 1000. Original nominal coordination model of a common industrial container class. Capacity is a name/class, not a measured usable volume. Wall gauges, fitting details and cage structure are representative; no pressure, chemical compatibility, lifting or transport rating is assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1.5 MBDetails & download
  • Closed-head 55-gallon-class drumstepRotate in 3D
    Closed-head 55-gallon-class drum

    Closed-head 55-gallon-class drum, modeled from published dimensions. Overall 585 x 585 x 883 mm. Key dimensions: nominal capacity class gallons 55; body diameter 570 mm; bead diameter 585 mm; body height 880 mm. Original nominal coordination model of a common industrial container class. Capacity is a name/class, not a measured usable volume. Wall gauges, fitting details and cage structure are representative; no pressure, chemical compatibility, lifting or transport rating is assigned. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    62 KBDetails & download

Looking for 2D drawings, blocks and details? Browse the Drawing Library (1335).

Request a Part

If the library doesn’t have what you need, tell us. Requests decide what we add next. Leave an email and we’ll send you one message when it’s added.

Share Your Parts

Designed a part others could use? Upload STEP, STL, SketchUp or other 3D files, or a zip of them, and describe each one. Everything is reviewed before it appears, released under CC0, and kept for 1 to 5 years depending on file size. You can also add a single file from the viewer’s Share dialog. See the library terms.

Contribute parts

Parts here are contributed by their authors or come from public-domain collections. If you believe a file infringes your rights, use Report on its viewer page or see our copyright policy.