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Floor plan layout: How to sketch your plan

Embarking on a reno’ but don’t have a floor plan? It’s not as complicated as you might think.

What you’ll need:

  • Pen or pencil
  • Paper, ideally grid – if you have a printer, why not download our free grid paper (it comes in A4 and A3 in one easy download!)
  • Clipboard or another hard surface to lean on
  • Measuring tape or laser
  • Calculator if needed
  • If available, someone to give you a hand

How to prepare a floor plan:

  1. Grab your pen/pencil, paper, and clipboard and head to your largest space, i.e. the living area.
  2. Decide on the scale you’re going to use. Our grid paper is 0.50 cm2 which could translate to 0.50 m2 in your floor plan.
  3. Choose a wall to start with, ideally the longest – perhaps it’s the back wall of your home.
  4. Using your measuring tape or laser, measure the length of the wall end-to-end.
  5. Divide the wall length by the scale to calculate the length of your wall on the grid paper. For example, 6m / 0.50cm = 12 grids / squares with the proposed scale.
  6. Draw a line at the bottom of the sheet in the appropriate length (i.e. 12 grids) – this is the wall you have measured.
  7. Repeat this process for all walls. Make sure to measure a connecting wall each time so you can draw the wall off the last one on the page.

Note: these measurements are in lineal metres. For square metres, see below.

How to calculate the floor area of a room:

Once you have your floor plan prepared, count the grids, and multiply by the scale of your graph paper to obtain your floor area. For example: 234 grids x 0.50cm = 117m2.

To calculate the floor area of one specific room, simply count the grids in that room and complete the same calculation.

Tip: the square metreage of a room is sometimes written as sqm or m2.

How to calculate the square metreage of a wall:

Say you want to paint a feature wall in your bedroom, but don’t know how much paint you will require. You’ll need to calculate the square metreage of the wall. Using your floor plan, count the number of grids that the wall is in length and translate that to a linear measurement. For example: 7 grids x 0.50cm = 3.5m.

Next, grab your measuring tape and measure the height from floor to ceiling against the wall. Say it is 2.4m. Measure it in 2-3 places just to be sure.

To calculate the square metreage of the wall, multiply the length by the height. For example: 3.5m (L) x 2.4m (H) = 8.4m2.

Tip: Always add 10-20% when buying materials.

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