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.
3161 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain
284 3D parts in Architecture & BIM · Clear all
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Concrete curb ramp with side flaresConcrete curb ramp with side flares. Overall size 2.800 x 4.200 x 0.150 m; original unbranded model. Overall 2.8 x 4.2 x 0.2 m. Nominal size: 150 mm rise. 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.
514 KBDetails & downloadstepRotate in 3D
Outdoor timber deck stepsOutdoor timber deck steps. Overall size 1.743 x 1.220 x 1.802 m; original unbranded model. Overall 1743 x 1220 x 1802 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.
640 KBDetails & downloadstepRotate in 3D
Switchback stair with intermediate landingSwitchback stair with intermediate landing. Overall size 4.039 x 2.530 x 3.761 m; original unbranded model. Overall 4 x 2.5 x 3.8 m. Nominal size: 1100 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.
1.0 MBDetails & downloadstepRotate in 3D
Alternating-tread ship ladderAlternating-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 & downloadstepRotate in 3D
Steel industrial stair with grating treadsSteel 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 & downloadstepRotate in 3D
Exterior concrete steps with handrailsExterior 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 & downloadstepRotate in 3D
3.6 m wall handrail with returns3.6 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 & downloadstepRotate in 3D
2.4 m wall handrail with returns2.4 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 & downloadstepRotate in 3D
1.2 m wall handrail with returns1.2 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 & downloadstepRotate in 3D
2.4 m post-mounted guard with balusters2.4 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 & downloadstepRotate in 3D
2.4 m glass balustrade with top rail2.4 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 & downloadstepRotate in 3D
2.4 m dual-height accessible handrail2.4 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 & downloadstepRotate in 3D
Escalator with grooved stepsEscalator 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 & downloadstepRotate in 3D
Elevator cabin, open doorsElevator 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 & downloadstepRotate in 3D
1200 x 800 mm wooden pallet1200 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 & downloadstepRotate in 3D
1000-liter-class IBC tote1000-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 & downloadstepRotate in 3D
Closed-head 55-gallon-class drumClosed-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 & downloadstepRotate in 3D
40 ft standard shipping container40 ft standard shipping container, modeled from published dimensions. Overall 12.2 x 2.4 x 2.6 m. Key dimensions: floor length 12032 mm; floor width 2352 mm. Published ISO external envelope follows the Hapag-Lloyd specification: 2438 mm wide, 2591 mm high, 6058/12192 mm long. Door opening uses a 2340 x 2292 mm nominal fleet layout. Original reconstructed frame, corrugations, door hardware and plywood floor. Corner castings, seals, structural gauges, roof corrugations and complete ISO lifting interfaces are simplified or omitted. Not a certified freight container or an exact manufacturer interior. 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.
3.3 MBDetails & downloadstepRotate in 3D
20 ft standard shipping container20 ft standard shipping container, modeled from published dimensions. Overall 6.1 x 2.4 x 2.6 m. Key dimensions: floor length 5900 mm; floor width 2352 mm. Published ISO external envelope follows the Hapag-Lloyd specification: 2438 mm wide, 2591 mm high, 6058/12192 mm long. Door opening uses a 2340 x 2292 mm nominal fleet layout. Original reconstructed frame, corrugations, door hardware and plywood floor. Corner castings, seals, structural gauges, roof corrugations and complete ISO lifting interfaces are simplified or omitted. Not a certified freight container or an exact manufacturer interior. 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.
2.0 MBDetails & downloadstepRotate in 3D
Rooftop HVAC unitRooftop HVAC unit, modeled from published dimensions. Overall 2.2 x 1.4 x 1.3 m. Key dimensions: support height 120 mm. Original unbranded HVAC equipment envelope. Internal coil, compressor, filters, ducts and control circuitry are omitted. Fan blades/guards and louvers are representative; no cooling capacity, airflow or equipment rating 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.
451 KBDetails & downloadstepRotate in 3D
Mini-split indoor unitMini-split indoor unit, modeled from published dimensions. Overall 850 x 211 x 285 mm. Key dimensions: width 850 mm; depth 210 mm; height 285 mm. Original unbranded HVAC equipment envelope. Internal coil, compressor, filters, ducts and control circuitry are omitted. Fan blades/guards and louvers are representative; no cooling capacity, airflow or equipment rating 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.
100 KBDetails & downloadstepRotate in 3D
Straight stair with railsStraight stair with rails, modeled from published dimensions. Overall 4.5 x 1 x 3.7 m. Key dimensions: floor rise 2800 mm; tread run 280 mm; riser 175 mm; width 1000 mm; risers 16. Original nominal stair design with explicit rise, run and handrail geometry. Building-specific landings, headroom, guard infill, anchorage and structural design remain outside this layout model. No building-code or accessibility compliance is claimed. 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.
1.3 MBDetails & downloadstepRotate in 3D
Spiral stair with railSpiral stair with rail, modeled from published dimensions. Overall 1.9 x 1.9 x 3.8 m. Key dimensions: floor rise 2800 mm; risers 16; riser 175 mm; outer radius 950 mm; column diameter 180 mm; turn deg 360. Original nominal stair design with explicit rise, run and handrail geometry. Building-specific landings, headroom, guard infill, anchorage and structural design remain outside this layout model. No building-code or accessibility compliance is claimed. 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.
1.8 MBDetails & downloadstepRotate in 3D
L-shaped stair with landingL-shaped stair with landing, modeled from published dimensions. Overall 3.2 x 3.2 x 3.7 m. Key dimensions: floor rise 2800 mm; flight risers 8; landing 1000 mm; tread run 280 mm; riser 175 mm; width 1000 mm. Original nominal stair design with explicit rise, run and handrail geometry. Building-specific landings, headroom, guard infill, anchorage and structural design remain outside this layout model. No building-code or accessibility compliance is claimed. 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.
1.6 MBDetails & download
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