When painting a room, redecorating or laying new carpet, a room plan drawn to scale is always a useful reference. Drawing to scale, or creating a proportional representation of a particular area, is just a matter of careful measurement and then transferring these to paper.
Measure the length and width of the room in question with a tape measure that reads in metres and centimetres. Note measurements on a notepad being sure to include every wall. At this point you can label a small sketch with the measurements or just give each wall a title -- for example, "connecting wall" -- and list them, whatever ever method works best for you.
Transfer the measurements on to graph paper using a pencil and a ruler. This means taking each measurement and drawing it on the graph paper using a scale of 1 metre (3 foot) is equal to one square on the paper.
Know that length multiplied by width will give the area of the room in square metres. This calculation is a good way of checking that you have filled in the right number of squares on your paper.
Include in the sketch any permanent pieces of furniture or built-in shelving or cupboards.
Write down the location of all doors and windows in the room, measuring them and drawing them to the same scale on the floor plan.
Outline the entire sketch in black ink with the help of a ruler. This provides a clear basic floor plan that is clear and easy to read.
Make several photocopies of the floor plan so you can try planning and design the room in several ways. Hold one copy back to save time on later projects.