Measure the room and the furniture

A room plan is useful when all dimensions refer to the same thing. Measure usable interior width and depth, then measure each furniture footprint. Include handles or protruding parts when they affect placement. Use metres consistently; 140 cm becomes 1.4 m, not 140 in a field labeled metres.

The planner models a rectangular room and rectangular furniture. It does not model structural work, irregular walls, fire access, electrical services or building requirements. Use it for a first arrangement and verify the real space before buying furniture or moving anything heavy.

Read positions from the top-left corner

Each item has a left coordinate, a top coordinate, width and depth. An item at x = 0.2 m and y = 0.3 m begins 20 cm from the left wall and 30 cm from the top wall in the drawing. Rotation by 90 degrees exchanges its displayed width and depth.

For a 4 × 3 m room, a 1.4 × 2 m bed at x = 0.2 and y = 0.2 occupies x = 0.2–1.6 and y = 0.2–2.2. That fits inside the room. A desk beginning at x = 1.5 can overlap the bed even if both items individually fit within the walls.

Use overlap warnings as a first check

The tool checks whether rectangular footprints overlap. A clean result means those rectangles do not intersect under the entered measurements. It does not mean there is enough room to open a wardrobe door, pull out a chair or move safely around the room.

Enter furniture through the table or drag a rectangle in the result. Dragging updates the stored coordinates and regenerates the plan so later exports reflect the move. The background grid is spaced at half a metre; small adjustments should still be checked against the numeric fields.

  1. Enter the room’s measured width and depth.
  2. Add furniture names and measured dimensions.
  3. Set positions or drag items inside the room.
  4. Review overlap warnings and revise the layout.
  5. Check door swings, chair movement and walkways separately.

Take the plan back to the room

Download the printable plan and compare it with the actual space. A rectangular room’s area is width multiplied by depth: 4 × 3 m gives 12 m². That area does not tell you whether a particular arrangement is comfortable. The shape of the remaining paths matters as well.

Optional local saving keeps entries in this browser, and a JSON backup keeps a separate copy. Neither is a professional measured survey. Re-measure tight spaces and check product dimensions before purchasing. If an arrangement affects structural elements, access or regulated work, obtain appropriate professional input rather than relying on a simplified diagram.

References & method notes

The linked references explain the underlying formats, APIs or methods. Worked examples and instructions are original to this guide; a reference is not an endorsement of Nepocore.