Floor plan to 3D: how to turn a 2D plan into a 3D model

Two ways from a plan to a model

With AI: AI Design Partner reads the plan

AI Design Partner is a chat beside your model that builds and edits 3D geometry directly on the canvas. Give it a plan image and it builds the floor plan in 3D (AI in uMake):

• Walls and openings measured from the plan.
• Rotated plans, concave rooms and polygon floors, not just rectangles.
• Up to three floors, with slabs, and straight or U-shaped stairs between them.

Step by step

1. Open a new 3D design and set its units to meters or feet.
2. Tap the Design Partner button in the top toolbar to open the chat (Help: Design Partner).
3. Attach the plan image and say what it is, for example “Build this ground floor plan in 3D”. Mention the number of floors if the image shows more than one.
4. Check the result: orbit it, and measure a wall you know with Dimensions & Measuring.
5. Keep the conversation going to correct or change it, step by step. The chat stays with the design.

A clean, straight-on plan image gives the best start. If a dimension matters, check it after the build, as you would with any model someone else drew. If Design Partner declines a request, no credits are used.

By hand: trace it, then extrude

When you want every wall exactly where you put it, model the plan yourself in the 3D editor:

1. Draw the outline with Precision: drag straight, snapped segments that chain end to end, then set exact lengths from the plan with dimensions and the measurement keypad. Closing the loop fills it with a surface while Auto Surface is on (Help: Draw a Curve (Precision)).
2. Extrude the floor and wall profiles to height, with Two ways when you need it (Help: Extrude).
3. Use Push & Pull to push a face in or pull it out: wall heights, recesses, a step.
4. Offset a curve to get a wall’s thickness from its center line or outer face.
5. Make repeated doors, windows or furniture Components, so one change updates every copy.

To work out the layout first, put the plan in a Space, select it and choose Use as Underlay: it moves to a faded, locked layer at the bottom, and you sketch over it with a finger or Apple Pencil on a layer above (Help: Layers). That’s a sketching board for zoning and notes; the measured model happens in the 3D editor.

Which route to choose

The two routes combine well. Let AI Design Partner build the whole floor in one go, then fix what needs to be exact by hand: push a wall to its true position, set a sill height, or redraw a tricky stair. For a quick massing to talk through with a client, the AI build alone is often enough. For a model that other people will build from, draw the critical walls yourself and check them with dimensions, whichever way you started.

After the plan is 3D

• Assign PBR materials, and study daylight with the sun set by time of day, season and north.
• Open Live AI Preview for a photorealistic render beside the model, or 4 Views for front, side, rear and 3/4 at once.
• Add a render to a Space and open it in Scene Studio to change the light and camera, one short clip at a time (Scene Studio).
• View it in AR on a real table on iPhone or iPad, or export STEP, IGES, OBJ, STL or USDZ with a plan.

uMake doesn’t read or write DWG or DXF. If your plan only exists as a DWG, export an image of it from your CAD tool and give that to Design Partner, or read its dimensions and draw it by hand.