Searching for an AI tool to convert a 2D floor plan to a 3D model returns dozens of results, most of which do fundamentally different things. Some produce rendered images. Some require you to redraw the plan from scratch. Some are SketchUp plugins. Some are image generators with a floor plan checkbox.
This guide cuts through the noise. We tested every major category of tool, identified what each one actually delivers, and ranked them honestly — including where Strukt AI sits and where it doesn't.
What "2D floor plan to 3D" actually means
Before comparing tools, it's worth being precise about the problem. There are three meaningfully different things a tool can do when you give it a floor plan:
- →Generate an image — produces a photorealistic picture of a room inspired by the floor plan. Not editable. Not geometrically accurate. Fast.
- →Redraw in 3D manually — you trace the floor plan in a 3D tool. Accurate. Fully editable. Takes hours.
- →Convert automatically to an editable 3D model — AI reads the floor plan and produces live geometry. Accurate, editable, and fast. This is what most people actually want.
Most disappointment with "AI floor plan to 3D" tools comes from expecting the third outcome and getting the first. Knowing which category a tool is in before you try it saves a lot of time.
Tool-by-tool comparison
1. Strukt AI — Best for editable 3D from any floor plan
Category: Automatic 3D conversion (live geometry)
Input: PDF, CAD (DWG/DXF), PNG, JPG, hand sketch
Output: Fully editable 3D model with real brand materials
Price: Free tier, Pro from $5/month
Strukt AI reads any floor plan format and produces a live 3D model — not a render of a model, but the actual geometry. Walls are walls you can move. Furniture is individually swappable. Materials come from real brand catalogs with PBR maps. You can type "change the kitchen floor to dark marble" and it applies.
- →No manual tracing — AI detects walls, rooms, doors, windows automatically
- →Works on messy real-world plans, not just clean CAD exports
- →First-person walkthrough mode for spatial validation
- →Natural language edits via AI chat
- →Photorealistic renders in seconds
Best for: interior designers, architects, real estate developers who need accurate, editable 3D from a real floor plan — especially off-plan sales where the property doesn't exist yet.
Limitation: optimised for architectural floor plans; not a general-purpose 3D modeler.
2. Planner 5D — Best for manual room design from scratch
Category: Manual 3D room builder with AI import
Input: PDF, PNG, JPG (AI import feature)
Output: Editable 3D room (after manual correction)
Price: Free with paid tiers
Planner 5D has an AI floor plan import feature that reads a PDF or image and attempts to generate a room layout. The results are usable for simple residential plans but often require significant manual correction — misread walls, missing openings, incorrect room sizes. Once you've corrected it, the editor is well-built and intuitive.
Best for: homeowners who want to design a room from scratch and don't mind spending time building it manually. Less suited to professional workflows that need accurate conversion of existing floor plans.
3. Cedreo — Best for residential architecture firms
Category: Professional 3D home design (manual build)
Input: Manual drawing tools
Output: High-quality 3D renders and floor plans
Price: From $99/month
Cedreo is purpose-built for residential architecture — house builders, contractors, and home design firms. It produces high-quality output but requires you to build the plan manually inside the tool, not import an existing floor plan. The learning curve is moderate and the monthly cost reflects a professional tool.
Best for: firms that produce new residential designs from scratch and need polished client-facing output. Not the right tool if you have an existing floor plan you need to convert.
4. Floor-Plan.AI — Best for fast isometric previews
Category: Image generation from floor plan
Input: Floor plan image
Output: Isometric 3D render (non-editable image)
Price: Free with credits
Fast — generates a 3D-style isometric image from a floor plan in under 30 seconds. The output looks good but is a static image with no underlying geometry. You can't move walls, edit furniture, or change materials. Each revision is a full regeneration.
Best for: quick visual previews for internal discussions or early client presentations. Not suitable for design work that requires iteration or accuracy.
5. SketchUp + AI plugins — Best for architects already in SketchUp
Category: Manual 3D modeling with AI assistance
Input: Manual build or DWG import
Output: Full editable 3D model
Price: From $119/year + plugin costs
SketchUp remains the professional standard for architectural 3D modeling. AI plugins like ArchiLabs add some automation — DXF-to-3D conversion, component placement — but the core workflow still requires manual modeling. If your team already lives in SketchUp, AI plugins can accelerate repetitive tasks. If you're starting from scratch, the learning curve is steep.
Best for: architecture firms with existing SketchUp workflows who want to automate specific tasks. Not for non-technical users or anyone who needs results in minutes rather than hours.
6. RoomGPT / Reimagine Home — Best for photo-based room restyling
Category: Photo restyling (not floor plan conversion)
Input: Photo of existing room
Output: Restyled room image
Price: Free with credits
These tools don't actually convert floor plans at all — they take a photo of an existing room and apply a style transfer. Fast, free, and useful for early renovation ideation. But they can't handle off-plan properties, can't change geometry, and produce non-editable images. Frequently confused with floor plan tools because they show up in the same searches.
Best for: homeowners wanting to see how a room would look in a different style. Not for anything requiring spatial accuracy or a floor plan.
Side-by-side comparison
| Tool | Auto-converts floor plan | Editable geometry | Real materials | Free tier |
|---|---|---|---|---|
| Strukt AI | ✓ Yes | ✓ Yes | ✓ Real brands | ✓ Yes |
| Planner 5D | Partial (needs correction) | ✓ Yes | Generic catalog | ✓ Yes |
| Cedreo | ✗ Manual only | ✓ Yes | Real brands | ✗ No |
| Floor-Plan.AI | ✓ Yes | ✗ Image only | ✗ No | ✓ Credits |
| SketchUp + AI | Partial (DWG) | ✓ Yes | Manual setup | ✗ No |
| RoomGPT | ✗ Photo only | ✗ Image only | ✗ No | ✓ Credits |
How to choose the right tool for your use case
You have an existing floor plan and need an editable 3D model fast
Use Strukt AI. Upload the plan, get a live 3D model in under a minute. Free to start at app.struktai.work.
You want to design a room from scratch and don't have a floor plan
Use Planner 5D or Cedreo. Both have room-building tools that let you draw walls manually and furnish the space.
You need a quick visual for a client presentation and don't need edits
Floor-Plan.AI produces a decent isometric preview in 30 seconds. Fast and free, but not editable.
You're selling an off-plan property that doesn't exist yet
Use Strukt AI. It's the only tool in this list that starts from an architectural floor plan and produces a walkable, furnished 3D environment that buyers can explore before a single wall is built.
Your team already uses SketchUp professionally
Stay in SketchUp and add AI plugins to speed up specific tasks. Switching tools for an established professional workflow rarely makes sense.
Bottom line
For most professionals — interior designers, architects, real estate developers — the combination of automatic conversion, editable geometry, and real brand materials that Strukt AI offers doesn't exist in any other free-to-try tool. For homeowners who want to design from scratch, Planner 5D is the best free option. For quick non-editable previews, Floor-Plan.AI is fast and cheap.
The worst outcome is spending two hours trying to make an image generator produce something editable. That's not a workflow problem — it's a tool category problem. Pick the right category first.