How to turn a floor plan into an STL for 3D printing

Updated 20 July 20264 min read

STL is the universal 3D-print format — it's what your slicer wants. To print a physical model of a home from its plan, the real work is turning the 2D drawing into an accurate 3D model; getting from there to STL is the easy last step.

The honest workflow

Extruda exports your plan as a 3D model in OBJ, glTF/GLB, and .blend. STL is one conversion step from any of those — we don't claim a native STL button; we do the hard part (reading the plan into accurate geometry) and hand you a model that's ready to convert.

Upload your 2D floor plan (image, PDF, or scan).
Convert it to a 3D model and export OBJ or .blend.
Open it in Blender (or a converter) and export STL.
Check it's watertight, scale it, and send it to your slicer.

Making it printable

Watertight mesh — no holes; walls need real thickness, not zero-width planes.
Scale — set a printable size (a whole floor often prints well at 1:100 or 1:50).
Manifold check — Blender's or your slicer's mesh check flags problem edges before you waste filament.

Want the printing side in depth? See how to turn a floor plan into a 3D print.

What you can print

A scale model of the home or unit — for client presentations, real-estate displays, architectural study models, or a keepsake of a project. It's the same 3D model that also feeds renders and virtual tours, so one conversion unlocks several outputs. For the full menu, see every export format.

Get a 3D model you can print

Upload a 2D plan, get an accurate 3D model (OBJ / .blend / glTF) — one step from a printable STL.

Get early access →

Frequently asked questions

How do I turn a floor plan into an STL?

Convert the 2D plan into a 3D model, then export it as OBJ or .blend and save/convert to STL. STL is the standard 3D-print format, so once you have the model the last step is quick — the hard part is getting an accurate 3D model from the plan in the first place.

Does Extruda export STL directly?

Extruda exports the 3D model as OBJ, glTF/GLB, and .blend. STL is one conversion step from there — open the model in Blender or a converter and export STL. We do the difficult part (reading the plan into accurate 3D geometry); STL is the last mile.

What makes an STL printable?

The mesh needs to be watertight (no holes or gaps), have solid thickness for walls, and sit at a printable scale. A quick check in Blender or your slicer flags non-manifold edges before you print.

What can I 3D print from a floor plan?

A scale model of the home or unit — great for client presentations, real-estate displays, architectural study models, and gifts. Walls, floors, and openings print as a physical miniature of the plan.