Free CAD Blocks and Symbols

Blocks and symbols to drop into your own drawings: signs, fixtures, annotation symbols and standard parts. Every file here is public domain: open it in your browser, then download it and use it for anything.

1335 drawings · DWG, DXF, PDF, SVG, DWF and more · public domain

440 drawings in Blocks & symbols · Clear all

  • A4 symbol: Danger: slippery floor (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: slippery floor (356 x 508 mm source)

    A4 symbol: Danger: slippery floor (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: slippery floor (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: slippery floor (254 x 356 mm source)

    A4 symbol: Danger: slippery floor (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: slippery floor (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: slippery floor (178 x 254 mm source)

    A4 symbol: Danger: slippery floor (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: overhead load (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: overhead load (356 x 508 mm source)

    A4 symbol: Danger: overhead load (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: overhead load (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: overhead load (254 x 356 mm source)

    A4 symbol: Danger: overhead load (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: overhead load (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: overhead load (178 x 254 mm source)

    A4 symbol: Danger: overhead load (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: moving machinery (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: moving machinery (356 x 508 mm source)

    A4 symbol: Danger: moving machinery (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: moving machinery (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: moving machinery (254 x 356 mm source)

    A4 symbol: Danger: moving machinery (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: moving machinery (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: moving machinery (178 x 254 mm source)

    A4 symbol: Danger: moving machinery (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: hot surface (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: hot surface (356 x 508 mm source)

    A4 symbol: Danger: hot surface (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: hot surface (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: hot surface (254 x 356 mm source)

    A4 symbol: Danger: hot surface (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: hot surface (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: hot surface (178 x 254 mm source)

    A4 symbol: Danger: hot surface (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: high voltage (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: high voltage (356 x 508 mm source)

    A4 symbol: Danger: high voltage (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: high voltage (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: high voltage (254 x 356 mm source)

    A4 symbol: Danger: high voltage (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: high voltage (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: high voltage (178 x 254 mm source)

    A4 symbol: Danger: high voltage (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: confined space (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Danger: confined space (356 x 508 mm source)

    A4 symbol: Danger: confined space (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: confined space (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Danger: confined space (254 x 356 mm source)

    A4 symbol: Danger: confined space (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Danger: confined space (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Danger: confined space (178 x 254 mm source)

    A4 symbol: Danger: confined space (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: slippery floor (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Caution: slippery floor (356 x 508 mm source)

    A4 symbol: Caution: slippery floor (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: slippery floor (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Caution: slippery floor (254 x 356 mm source)

    A4 symbol: Caution: slippery floor (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: slippery floor (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Caution: slippery floor (178 x 254 mm source)

    A4 symbol: Caution: slippery floor (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: overhead load (356 x 508 mm source)dxfOpen the drawing
    A4 symbol: Caution: overhead load (356 x 508 mm source)

    A4 symbol: Caution: overhead load (356 x 508 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: overhead load (254 x 356 mm source)dxfOpen the drawing
    A4 symbol: Caution: overhead load (254 x 356 mm source)

    A4 symbol: Caution: overhead load (254 x 356 mm source). 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 266.299 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

  • A4 symbol: Caution: overhead load (178 x 254 mm source)dxfOpen the drawing
    A4 symbol: Caution: overhead load (178 x 254 mm source)

    A4 symbol: Caution: overhead load (178 x 254 mm source). 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. Original editable CC0 vector drawing. Overall 210 x 297 x 0 mm. Nominal size: 210 x 297 mm A4 frame; 190.000 x 271.124 mm artwork; A3 at 1:1. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.

Looking for 3D parts and models? Browse the 3D Parts Library (3444).

Request a Drawing

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 Drawings

Have blocks, details or plans worth reusing? Upload DWG, DXF or PDF 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 drawings

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.