Please find our sash balance calculator below, complete the form in as much detail as possible and we will calculate your required sash balances.

It will be more accurate to weigh your sashes and input the weight in lbs below. If you do not know the weight of your sash window, leave the boxes blank and we will calculate the weight for you.

It is important to remember

  • Please enter all measurements in millimetres
  • The value of A must be less than B + C – 25mm
  • Our sash balance calculator is designed to calculate balances for softwood and hardwood windows.

For further help and technical assistance please call our Sales team on 01905 791876

sash balance diagram