Before you start...

Ensure when measuring, you take the measurement from the curtain pole or track rather than the width of the window. If you haven't fitted a new pole or track yet you will need to allow 15cm - 30cm either side of your window and 12cm - 15cm above the recess

Measuring the Width

If you have a pole, measure the full width excluding the finials. If you have a track fitted, you will need to measure the full length of the track.

Measuring the Drop

To calculate the finished length, you will need to decide the heading for your new curtains and also where you would like your curtains to finish.

Sill length: 0.5 cm above the sill

Below the Sill (that doesn't cover a radiator etc): 10-15cm below

Floor Length: Finishes 1cm off the floor, you can also have them puddle an extra 15-20cm on the floor.

Measure the Finishing Length

For Tab Top Heading

Measure from the top of the pole to your required bottom hem position, this is the drop.

Now measure the diameter of the pole and add this to your drop measurement, this gives your finished length.