Measure well
Allow a little extra

Our draught excluders taper on each end and so when you are measuring for a custom door size, it is always advisable to allow a couple of extra centimetres on either side.

So if your gap is 100cm, ask for a draught excluder of around 102-4cm -- this will allow you an added centimetre on either side of the gap and allow for the natural tapering of each end with the seam.

- Rosablue