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Getting Started
Nothing to install — RoomCAD runs in the browser. This page builds one real room from scratch, then saves it.
Open the site and enter the shared password. A cookie keeps you logged in on that browser, so you only do this once.
The password identifies the project. A browser opening RoomCAD for the first time lands on the project's most recent saved design; after that it always comes back to the exact design and version you last worked on.
┌──────────────────────────────────────────────────────────┐
│ 2D Plan │ 3D Walk │ grid │ tools │ New · Save · Open │ toolbar
├──────────┬───────────────────────────────┬───────────────┤
│ My Rooms │ │ Inspector │
│ Build │ the plan │ (whatever is │
│ Furniture│ │ selected) │
└──────────┴───────────────────────────────┴───────────────┘
Both dividers are draggable, and RoomCAD remembers the widths.
Start from ＋ New Room, then:
| # | Do this | Result |
|---|---|---|
| 1 | In the inspector set Width 400, Length 300 | a 4 × 3 m shell |
| 2 | Toolbar → 5 cm grid | comfortable snapping |
| 3 | Press D, click the bottom wall |
a door, 90 cm wide |
| 4 | Drag the door sideways | chips show the gap to each wall end |
| 5 | Press G, click the top wall |
a window at 90 cm sill height |
| 6 | Sidebar → Bed, click near a corner | green = it fits, red = it clashes |
| 7 | Press R
|
the bed turns 90° |
| 8 | Sidebar → Light → 60 W Bulb, click the middle | a ceiling bulb |
| 9 | Press ⌘2
|
walk it in 3D |
| 10 | Press L in the 3D view |
daylight off — see the bulb work |
Anything went wrong? ⌘Z undoes, ⇧⌘Z redoes.
Click 💾 Save. The Room Name is the file name. Call a design
Attic Flat and it is saved as Attic-Flat, appearing at the top of
My Rooms at v0 — the original, before anything has been saved on top
of it.
- Saving again under the same name adds a version: v1, v2, and so on. Nothing is ever overwritten.
- Changing the Room Name and saving starts a new design, at v0, and leaves the one you forked from exactly as it was. That is how you branch a layout without losing the version you liked.
- Leave the name empty and the server picks one for you (
ternak_room1, …).
Names are turned into file names: spaces and punctuation become dashes, and
accents fold to their base letter (Küche → Kuche), because server file
names are restricted to letters, digits, - and _.
My Rooms lists the most recently saved design first, so what you just saved is at the top. To go back in time, open 📂 Open…, pick a design, then choose a version from the list.
⬇️ Export downloads the same design as a .rcad file you can keep or
re-import later.
If someone else is in the project, a green Join Live button appears. See Live Collaboration — it is deliberate, not automatic.
- 2D Editor Guide — every tool, including Measure, Public areas and the automatic floor layout.
- 3D Walkthrough — physics, sun position and floors.