To calculate the square meterage (sqm) of your windows, you will need to measure the width and height in metres, then multiply the two sizes together.

For a window width of 1.244m x 1.143m, multiply the two sizes together and you will get 1.42sqm.

You then need to multiply the sqm size by the material cost:

  • For Elite Wood, multiple the sqm by £480 = £681.60 inc vat
  • For Standard Wood, multiple the sqm by £380 = £539.60
  • For Faux Wood, multiple the sqm by £430 = 610.60 inc vat

On its own, the cost of this window is under our minimum order value, so it would actually cost £1000 if you just ordered one window. But if it was included with other windows, there could be some discount included.

Remember, when you enter any sizes into our estimate form for a price, they will need to be in millimetres.

Size conversions for a window 1.244m x 1.143m

  • Inches: 49” x 45” (divide x 39.37 to convert to meters)
  • Centimeters: 124.4cm x 114.3cm (divide x 100 to convert to meters)
  • Millimeters: 1244mm x 1143mm (divide x 1000 to convert to meters)