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How to Measure a Room to Sketch a Floor Plan

How to measure a room for interior sketching

First of all you may think measuring your space is a simple enough task, but you will be surprised at how many of my clients get it wrong or miss a measurement. So here is a guide that will teach you how to measure a room for a floor plan sketch. Take note before you start you may need someone to assist, if not more power to you. Lets get into it.

What you will need:

  • Measuring tape
  • Grid paper or plain paper
  • Pencil
  • Thick liner pen
measuring a room notations


  1. First grab you grid/ plain paper and draft out a basic outline of the room. This is just a draft so don’t worry if the lines are not straight. We are just trying to locate all the factors in the room.
  2. Mark all the locations of the doors, windows, outlets, and switches. See image below for the marking symbols.
  3. At the corner of the page notate the ceiling height of the room.
  4. Next I like to start with the base boards and crown molding if any. Notate the height and depth of each at the corner of your paper. under the ceiling height.
  5. Now on to the windows. Measure from the floor to the sill. Notate under the baseboard/ crown molding notes. Then measure from the sill to the top of the window. notate. Finally from the top of the window to the ceiling.
  6. You have now notice that we have not started measuring the walls. that is because We want to get all the measurements that we may forget first.
  7. Back to the windows, measure the width of them. Than measure how far they are from the other wall. See notation for example.
  8. Lets now measure doors width and height. Normally doors have a standard dimension, but there are times when the dimensions differ from the standard. Notate. See image below for an example of how to notate the measurements.
  9. Next measure the outlets and switches distance from the floor. Again not all homes use standard dimensions for install. There is always that one builder who just deviates from the standards.
  10. Finally, you can now measure the walls. To be honest this should be self explanatory. Again see image below for notation examples.
  11. You can now take you liner and outline your walls to give contrast and get a better visual.

And that’s how you measure a room to sketch a floor plan in a nutshell. If you still have any questions, feel free to leave a comment down below or email me.

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