You have a floor plan. Now what?
Maybe you're moving into a new place. Maybe you're staging a property. Maybe you're rearranging the living room for the third weekend in a row. You have a floor plan — a builder's PDF, a phone photo of a paper plan, a real estate listing screenshot — and you want to know whether your sofa actually fits before you start dragging it up the stairs.
The traditional answer is to open Planner 5D or RoomSketcher, redraw the entire home from scratch in their builder, then place furniture. That is an evening you do not get back. Ritn3D's bet is that you should not have to redraw anything.
What you'll need
- A floor plan in any common format — PDF, JPG, PNG, WebP. A clean phone photo of a paper plan works fine.
- A Ritn3D account. Drag-and-drop furniture placement is part of the Pro and Pro+ tiers, both with a 7-day free trial.
- A few minutes.
Step 1 — Convert the plan to 3D
Upload the floor plan. Ritn3D's AI detects the walls, doors, windows and rooms automatically. Most plans render into a walkable 3D model in under a couple of minutes — no tracing, no dimensioning, the AI figures it out from the image.
Before you generate, you'll see the detected walls. If something is missed, fix it directly in the editor. Once you generate the model, you have a 3D version of the actual home — walls in the right place, rooms in the right place, doors where they belong.
Step 2 — Drop in the furniture
Open the furniture catalog. Pick a sofa. Drag it into the living room. Drag in a coffee table. A dining set. A bed. The catalog covers every room — sofas, beds, dining sets, chairs, tables, storage, kitchen and bath.
Each piece in the catalog has real-world dimensions. That sounds small. It's the whole point.
When you drop a king bed into the bedroom and it snaps to a wall, and there's barely 60 cm of clearance to the dresser — you find that out now, not after the delivery truck shows up. Pieces won't clip through walls or overlap each other; you're not fighting the tool, you're seeing the space.
Step 3 — Walk through it
Switch from the top-down view into walk mode. Move through the rooms at standing height. This is the part most floor-plan tools don't really do — they show you the plan from above, which looks fine on paper but doesn't tell you how a layout feels when you stand in the doorway.
A few things you'll only notice in walk mode:
- The sightline from the kitchen to the TV when you're cooking.
- Whether the dining table actually fits without chairs scraping the wall.
- How a sectional sofa changes the path from the front door to the kitchen.
- Whether the closet door clears the bed.
Step 4 — Share the link
Generate a share link and send it to a partner, a designer, the friend who has opinions, a client. They open it in any browser — no app install, no account. They can orbit and walk through the furnished model the same way you do.
For a property listing, drop the link in the description. For a renovation, send it to the contractor.
A few pitfalls to plan around
Furniture sizes are real, not exact. Catalog dimensions are real-world averages — the sofa you eventually buy might be a few centimetres different. Always confirm specs with the manufacturer for tight fits.
The AI is good, not perfect. Detection works best on clean digital plans and crisp scans. Rough hand sketches don't convert reliably yet — redraw or pick a sample plan.
A 3D model is a planning tool, not a permit. For anything load-bearing or that touches building code, the contractor or architect has the final word. Ritn3D is for thinking about the space, not stamping the build.
Why this beats redrawing
The shortest path from "I have a floor plan" to "I know if my furniture fits" is the one that does not ask you to become a CAD operator first. Upload, drop in a few pieces, walk through, decide. That's the whole point.
If you have a plan sitting in a folder somewhere, that is the moment to use it. Try the Ritn3D web app in your browser, or grab the iOS or Android app.