What are the plan and elevation dimensions of this chimney?

The plan is 900 mm (35.43 in) × 550 mm (21.65 in) (width × depth). The front elevation is 900 mm (35.43 in) × 990 mm (38.98 in) (width × height). These are drawing extents, including any symbolic additions; they are not a manufacturer's nominal size.

Is this a DWG download or a DXF file?

Each download contains AutoCAD R2013 DXF in a ZIP, not DWG. Extract the ZIP, then open DXF in AutoCAD; use Save As and choose DWG if needed. No native DWG files or DWG converter are included.

What units and insertion scale should I use?

The drawings use millimetres with $INSUNITS=4. Set the destination drawing to millimetres and insert at scale 1. If the destination uses inches, convert once using 1 inch = 25.4 mm; do not relabel the units without scaling geometry. PLAN and ELEVATION are separate named blocks in each drawing.

Can I use the CAD blocks in commercial projects?

Yes. Personal and commercial projects are free, without signup or attribution. Do not resell or redistribute the drawings as a standalone pack or another asset library. They are provided as-is, not as manufacturer, engineering or construction documentation.

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Workflow/Nov 6, 2026/5 min read/

Render a House/Updated Nov 6, 2026

Free Chimney CAD Block

Download a free chimney CAD block with a top plan and front elevation. Every drawing is a millimetre-scale DXF that opens in AutoCAD. Free commercial use, no signup.

Chimney CAD block: top plan and front elevation, black linework on white, dimensions in millimetres

Free DXF downloads

Quick answer: Chimney: one AutoCAD R2013 DXF containing named PLAN and ELEVATION blocks, inserted side by side at scale 1. Downloads contain DXF in a ZIP, not DWG. Extract the ZIP first. AutoCAD opens DXF directly; use Save As if you need a DWG copy.

Download Chimney DXF in a ZIP · 5.8 KB

Millimetres · $INSUNITS=4 · separate reusable plan and elevation blocks · no external textures or references. Captions sit outside the blocks.

Read the pack README and commercial-use license.

Layout and placement notes

Use the chimney CAD block for architectural layout studies. Its top plan measures 900 mm (35.43 in) × 550 mm (21.65 in) and the front elevation measures 900 mm (35.43 in) × 990 mm (38.98 in). Both views are reusable named blocks in a millimetre-scale AutoCAD R2013 DXF, supplied in a ZIP. Check the drawing extents and any symbolic additions before placing it in a project.

This symbol does not design a flue. Fire separation, termination height, exhaust performance, structural support and weathering must be coordinated for the intended installation rather than inferred from the decorative outer shape.

Dimensions and layers

Chimney CAD block dimensions
View / measurement	Millimetres and inches
PLAN drawing extents (width × depth)	900 mm (35.43 in) × 550 mm (21.65 in)
ELEVATION drawing extents (width × height)	900 mm (35.43 in) × 990 mm (38.98 in)
Physical source mesh width	900 mm (35.43 in)
Physical source mesh depth	550 mm (21.65 in)
Physical source mesh height	990 mm (38.98 in)
DXF format / ZIP download size	AutoCAD R2013 in a ZIP / 5.8 KB

Drawing extents include any swing or schematic symbols. Physical source bounds are listed separately; neither is a manufacturer's nominal or clear-opening dimension.

CAD drawing layers
Layer	Purpose
A-FURN-DETL	Visible interior features and component edges; 0.13 mm
A-FURN-OUTL	Closed silhouettes and openings; 0.25 mm lineweight
A-ANNO-TEXT	View captions outside the reusable blocks; 0.13 mm

Most plans are true overhead projections, not floor-plan cuts: lintels and overhangs may hide lower details. Door operation symbols are deliberately schematic. Curves retain some source-model faceting; drawings are layout aids, not construction details.

How to insert the DXF

AutoCAD: open DXF or insert as a drawing block

Open the DXF directly and run UNITS: insertion units should be millimetres. In a millimetre project, insert at scale 1. Use INSERT for the whole drawing or copy the required PLAN/ELEVATION block. To merge several files, insert each whole file as its own named drawing block or rename the nested PLAN and ELEVATION definitions first to avoid block-name collisions. AutoCAD can save the drawing as DWG; this library supplies DXF only.

Revit: import 2D CAD at millimetre scale

In the intended plan or elevation view, choose Insert → Import CAD, select the DXF, set Import Units to millimetres and use Current view only when appropriate. The file contains both views side by side: prepare a view-specific copy or control visibility before placing it. It is 2D linework, not a parametric Revit family.

SketchUp: DXF import in a supported edition

Use a SketchUp edition that supports CAD import. Choose File → Import, select DXF, open Options and set the units to millimetres. Import into an empty model first, retain grouping, then move the required view into your project. These lines do not become a furnished 3D model; use the linked 3D asset for that.

ArchiCAD: open or merge with a DXF/DWG translator

Open or Merge the DXF and choose a translator with drawing units set to millimetres. Check the layer mapping and block handling in a scratch file, then use the required 2D view in the project. Confirm a known width using the dimension table before duplicating the symbol.

Working in inches: 1 inch is exactly 25.4 mm. Convert once on import, or scale millimetre coordinates by 1/25.4 in an inch-based drawing. Do not both auto-convert units and manually scale again.

Render your design

After arranging the blocks, export a clean plan or compose a scene with the matching 3D models. Upload a supported image or SketchUp view to Render a House to explore a rendered design. Do not upload a DXF expecting it to become an editable BIM model; keep the original CAD drawing as the dimensional reference.

License

Free for personal and commercial projects. No signup or attribution required. Do not resell or redistribute the files as a standalone pack or another asset library. Provided as-is without warranty: not manufacturer-certified products, engineering assemblies or construction documentation.

Frequently asked questions

How should I place the chimney CAD block?: This symbol does not design a flue. Fire separation, termination height, exhaust performance, structural support and weathering must be coordinated for the intended installation rather than inferred from the decorative outer shape.
What are the plan and elevation dimensions of this chimney?: The plan is 900 mm (35.43 in) × 550 mm (21.65 in) (width × depth). The front elevation is 900 mm (35.43 in) × 990 mm (38.98 in) (width × height). These are drawing extents, including any symbolic additions; they are not a manufacturer's nominal size.
Is this a DWG download or a DXF file?: Each download contains AutoCAD R2013 DXF in a ZIP, not DWG. Extract the ZIP, then open DXF in AutoCAD; use Save As and choose DWG if needed. No native DWG files or DWG converter are included.
What units and insertion scale should I use?: The drawings use millimetres with $INSUNITS=4. Set the destination drawing to millimetres and insert at scale 1. If the destination uses inches, convert once using 1 inch = 25.4 mm; do not relabel the units without scaling geometry. PLAN and ELEVATION are separate named blocks in each drawing.
Can I use the CAD blocks in commercial projects?: Yes. Personal and commercial projects are free, without signup or attribution. Do not resell or redistribute the drawings as a standalone pack or another asset library. They are provided as-is, not as manufacturer, engineering or construction documentation.

Need the object in three dimensions? Download the matching Chimney 3D model in GLB, FBX and OBJ.

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