Free Architectural 3D Models

Building elements and architectural models. Every file here is public domain: open it in your browser, then download it and use it for anything.

3342 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

284 3D parts in Architecture & BIM · Clear all

  • Light switchstepRotate in 3D
    Light switch

    Light switch, modeled from published dimensions. Overall 70 x 12.6 x 115 mm. Key dimensions: mount pitch 97 mm. Original nominal architectural fixture. Plate/enclosure dimensions and simplified openings are for layout; wiring, contacts and electrical performance are omitted. Outlet slots are a recognizable envelope, not a certified connector specification. 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.

  • Electrical panelstepRotate in 3D
    Electrical panel

    Electrical panel, modeled from published dimensions. Overall 450 x 148 x 650 mm. Original nominal architectural fixture. Plate/enclosure dimensions and simplified openings are for layout; wiring, contacts and electrical performance are omitted. Outlet slots are a recognizable envelope, not a certified connector specification. 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.

  • Electrical outletstepRotate in 3D
    Electrical outlet

    Electrical outlet, modeled from published dimensions. Overall 70 x 8 x 115 mm. Key dimensions: mount pitch 97 mm. Original nominal architectural fixture. Plate/enclosure dimensions and simplified openings are for layout; wiring, contacts and electrical performance are omitted. Outlet slots are a recognizable envelope, not a certified connector specification. 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.

  • Data outlet wall platestepRotate in 3D
    Data outlet wall plate

    Data outlet wall plate, modeled from published dimensions. Overall 70 x 18 x 115 mm. Key dimensions: mount pitch 97 mm. Original nominal architectural fixture. Plate/enclosure dimensions and simplified openings are for layout; wiring, contacts and electrical performance are omitted. Outlet slots are a recognizable envelope, not a certified connector specification. 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.

  • Fire sprinkler headstepRotate in 3D
    Fire sprinkler head

    Fire sprinkler head, modeled from published dimensions. Overall 33.9 x 33.9 x 52 mm. Key dimensions: deflector diameter 34 mm; body thread envelope 20 mm; total height 52 mm. Original unbranded visualization and coordination model. Representative components and declared envelopes only; no fire rating, detector certification, hydraulic performance or life-safety compliance 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.

  • Smoke detectorstepRotate in 3D
    Smoke detector

    Smoke detector, modeled from published dimensions. Overall 120 x 120 x 33.8 mm. Key dimensions: diameter 120 mm; height 33.8 mm. Original unbranded visualization and coordination model. Representative components and declared envelopes only; no fire rating, detector certification, hydraulic performance or life-safety compliance 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.

  • Fire extinguisher cabinetstepRotate in 3D
    Fire extinguisher cabinet

    Fire extinguisher cabinet, modeled from published dimensions. Overall 400 x 183.1 x 650 mm. Key dimensions: glazed door true. Original unbranded visualization and coordination model. Representative components and declared envelopes only; no fire rating, detector certification, hydraulic performance or life-safety compliance 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.

  • Square supply diffuserstepRotate in 3D
    Square supply diffuser

    Square supply diffuser, modeled from published dimensions. Overall 595 x 595 x 28 mm. Key dimensions: face size 595 mm; nominal ceiling module 609.6 mm. Original dimensioned face geometry for coordination and visualization. Neck, plenum, damper and filter are omitted. No airflow, acoustic performance or ventilation sizing 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.

  • Louvered return grillestepRotate in 3D
    Louvered return grille

    Louvered return grille, modeled from published dimensions. Overall 595 x 595 x 23.5 mm. Key dimensions: face size 595 mm; nominal ceiling module 609.6 mm. Original dimensioned face geometry for coordination and visualization. Neck, plenum, damper and filter are omitted. No airflow, acoustic performance or ventilation sizing 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.

  • Ceiling grid and 2 x 4 ft tilestep2 x 4 ftRotate in 3D
    Ceiling grid and 2 x 4 ft tile

    Ceiling grid and 2 x 4 ft tile, modeled from published dimensions. Overall 609.6 x 1219.2 x 32 mm. Key dimensions: grid height 32 mm. Original nominal ceiling-grid section. Tile has 1 mm edge clearance inside the vertical webs and 4 mm bearing on each support flange. Profiles are simplified; ceiling suspension wires and proprietary connector tabs are omitted. 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.

  • Ceiling grid and 2 x 2 ft tilestep2 x 2 ftRotate in 3D
    Ceiling grid and 2 x 2 ft tile

    Ceiling grid and 2 x 2 ft tile, modeled from published dimensions. Overall 609.6 x 609.6 x 32 mm. Key dimensions: grid height 32 mm. Original nominal ceiling-grid section. Tile has 1 mm edge clearance inside the vertical webs and 4 mm bearing on each support flange. Profiles are simplified; ceiling suspension wires and proprietary connector tabs are omitted. 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.

  • Parking wheel stopstepRotate in 3D
    Parking wheel stop

    Parking wheel stop, modeled from published dimensions. Overall 1800 x 300 x 112 mm. Key dimensions: length 1800 mm; width 300 mm; height 112 mm; mount pitch 1200 mm; mount hole 24 mm. Original unbranded site-coordination model. Dimensions are explicit library choices. Reflectors and ballast/fixing details are simplified; no impact rating or road-authority compliance 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.

  • Traffic conestepRotate in 3D
    Traffic cone

    Traffic cone, modeled from published dimensions. Overall 360 x 360 x 650 mm. Key dimensions: height 650 mm; base 360 mm. Original unbranded site-coordination model. Dimensions are explicit library choices. Reflectors and ballast/fixing details are simplified; no impact rating or road-authority compliance 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.

  • Traffic barrierstepRotate in 3D
    Traffic barrier

    Traffic barrier, modeled from published dimensions. Overall 2 x 0.4 x 0.9 m. Key dimensions: length 2000 mm; width 440 mm; height 855 mm. Original unbranded site-coordination model. Dimensions are explicit library choices. Reflectors and ballast/fixing details are simplified; no impact rating or road-authority compliance 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.

  • Street trash canstepRotate in 3D
    Street trash can

    Street trash can, modeled from published dimensions. Overall 480 x 480 x 750 mm. Key dimensions: body diameter 440 mm; opening diameter 245 mm; height 750 mm. Original unbranded library design with declared nominal dimensions. Geometry is for layout and visualization; omitted internals and undimensioned details do not establish manufacturer equivalence or physical performance. 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.

  • BollardstepRotate in 3D
    Bollard

    Bollard, modeled from published dimensions. Overall 220 x 220 x 856 mm. Key dimensions: height 856 mm; post diameter 140 mm; base diameter 220 mm; mount circle 180 mm; mount hole 18 mm. Original unbranded library design with declared nominal dimensions. Geometry is for layout and visualization; omitted internals and undimensioned details do not establish manufacturer equivalence or physical performance. 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.

  • Bike rackstepRotate in 3D
    Bike rack

    Bike rack, modeled from published dimensions. Overall 860 x 140 x 936 mm. Key dimensions: center span 700 mm; tube diameter 48 mm; top center height 900 mm. Original unbranded library design with declared nominal dimensions. Geometry is for layout and visualization; omitted internals and undimensioned details do not establish manufacturer equivalence or physical performance. 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.

  • Street benchstepRotate in 3D
    Street bench

    Street bench, modeled from published dimensions. Overall 1800 x 608.5 x 829.1 mm. Key dimensions: length 1800 mm; seat height 435 mm; seat depth 438 mm. Original unbranded library design with declared nominal dimensions. Geometry is for layout and visualization; omitted internals and undimensioned details do not establish manufacturer equivalence or physical performance. 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.

  • 60 inch T-shaped turning footprintstepRotate in 3D
    60 inch T-shaped turning footprint

    60 inch T-shaped turning footprint, modeled from published dimensions. Overall 1524 x 1524 x 1 mm. Key dimensions: arm and stem width 914.4 mm. Source-referenced plan footprint using exact conversions of the ADA inch dimensions (25.4 mm per inch). The 1 mm extrusion is a visible CAD marker, not a required clearance height. Basic clear-floor and turning geometry only. Alcoves, routes, approaches, permitted overlaps, slopes and fixture-specific requirements must be evaluated separately; this asset does not certify a room or design. 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. Built by Innerscene from MakeHuman/MPFB CC0 body, rig and skin assets; released CC0.

  • 60 inch circular turning footprintstepRotate in 3D
    60 inch circular turning footprint

    60 inch circular turning footprint, modeled from published dimensions. Overall 1524 x 1524 x 1 mm. Key dimensions: diameter 1524 mm; reference diameter inches 60. Source-referenced plan footprint using exact conversions of the ADA inch dimensions (25.4 mm per inch). The 1 mm extrusion is a visible CAD marker, not a required clearance height. Basic clear-floor and turning geometry only. Alcoves, routes, approaches, permitted overlaps, slopes and fixture-specific requirements must be evaluated separately; this asset does not certify a room or design. 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. Built by Innerscene from MakeHuman/MPFB CC0 body, rig and skin assets; released CC0.

  • 30 × 48 inch clear floor footprintstepRotate in 3D
    30 × 48 inch clear floor footprint

    30 × 48 inch clear floor footprint, modeled from published dimensions. Overall 762 x 1219.2 x 1 mm. Key dimensions: width 762 mm; depth 1219.2 mm. Source-referenced plan footprint using exact conversions of the ADA inch dimensions (25.4 mm per inch). The 1 mm extrusion is a visible CAD marker, not a required clearance height. Basic clear-floor and turning geometry only. Alcoves, routes, approaches, permitted overlaps, slopes and fixture-specific requirements must be evaluated separately; this asset does not certify a room or design. 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. Built by Innerscene from MakeHuman/MPFB CC0 body, rig and skin assets; released CC0.

  • Soap Niche - Recessed Soap DishglbRotate in 3D
    Soap Niche - Recessed Soap Dish

    Deep wall-inset dish with a projecting lip and raised drainage ribs. Finish: Ivory ceramic. Overall size 27.7 x 20 x 22.5 cm (W x D x H), modeled in meters at real-world scale with the floor at zero. Textured PBR materials are embedded in the GLB. About 3k triangles. No ground plane or room geometry. Original Innerscene model, released CC0.

  • Swing Rails - Pivoting Towel RailsglbRotate in 3D
    Swing Rails - Pivoting Towel Rails

    Three independent swivel towel bars carried by a vertical wall mounting spine. Finish: Satin bronze. Overall size 45.5 x 30.2 x 31.6 cm (W x D x H), modeled in meters at real-world scale with the floor at zero. Textured PBR materials are embedded in the GLB. About 1k triangles. No ground plane or room geometry. Original Innerscene model, released CC0.

  • Towel Ring - Wall Towel RingglbRotate in 3D
    Towel Ring - Wall Towel Ring

    Pivoted circular towel ring and separate wall mounting rosette. Finish: Brushed nickel. Overall size 22.4 x 7.5 x 24.4 cm (W x D x H), modeled in meters at real-world scale with the floor at zero. Textured PBR materials are embedded in the GLB. About 2k triangles. No ground plane or room geometry. Original Innerscene model, released CC0.

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