Arrange the furniture, then find out it fits
Most placement tools let you drop a sofa anywhere and leave the measuring to you. Decato works from a real floor plan, so a piece that crosses a wall or blocks a door swing never lands there in the first place.
How the arrangement gets made
Draw the room or import a floor plan you already have. Wall runs, door swings and windows come with it.
The bed, the sofa, the table — whatever the room is measured off. Everything else is arranged around it.
A piece crossing a wall or blocking a door swing is moved or dropped before it reaches the layout.
Rearranging is cheap: change a piece and the fit and the running total both update with it.
Arrange a specific room
Each room is decided by a different constraint — clearance around a bed, the walkway past a sofa, the pull-out space behind a dining chair.
Living room
A sourced living room: matched real products with fit checks and a running budget.
OpenBedroom
A sourced bedroom: bed, storage and lighting matched, fit-checked and priced.
OpenKitchen
A sourced kitchen: cabinetry, appliances and furniture matched, fit-checked and priced.
OpenBathroom
A sourced bathroom: vanity, fixtures and finishes matched, fit-checked and priced.
OpenHome office
A sourced home office: desk, seating and storage matched, fit-checked and priced.
OpenDining room
A sourced dining room: table, chairs and lighting matched, fit-checked and priced.
OpenCommon questions
Is this a furniture arrangement app or a design generator?
An arrangement tool. It works from a plan with real dimensions and decides where things go against the walls you actually have. It does produce an image at the end, but the image is a view of the arrangement rather than the other way round.
How does it know a piece will fit?
Because every product carries its own catalogue dimensions. The block on the plan is sized to the real width and depth of that sofa, so a collision with a wall, a door swing or a walkway is geometry rather than a judgement call.
Can I rearrange after everything is placed?
That is most of the work. Moving or swapping a piece re-runs the fit check on the pieces around it and updates the room total, so trying five arrangements costs about as much as trying one.
Do I need a floor plan to start?
Yes — it is the input the whole thing runs on. You can draw one in the app from measurements, or import a plan you already have as a PNG or JPG and trace it.
Is it free?
Arranging a room costs nothing — the app is a free download and planning runs on your own ChatGPT, Claude or Gemini key without a limit. What is paid is turning those placements into real products and renders, from $20 a month. It runs on a Mac today.