Pelmets are easy to measure for. You will normally be measuring a pelmet board which may or may not be flush to the ceiling, or a pelmet (duo) rail. In all cases, all we need to know for whatever type of pelmet you choose is the width of your board or rail, plus the depth of the left return and right return.

1. A Left Return in centimetres(inches)
2. B Width in centimetres(inches)
3. C Right Return in centimetres(inches)

Pelmet Board

Duo Rail