How do I measure my pan for a new toilet seat?
If you have a D Shaped or Oval Shaped pan there are three easy steps to measuring for a new toilet seat. 1: Take off your existing toilet seat. Measure the space between the holes (closest to your cistern) measure from the centre of the left hole to the centre of the right hole. 2: Measure the width of the pan (from the widest part in the middle of the pan). 3: Measure the length from the centre of one of the holes closest to your cistern all the way to the very edge or front of your pan.