Our kitchen is made up of a mix of Magnet base units and Ikea wall units as the Ikea ones were available in the sizes and depths we wanted. I don’t know why, but Ikea make a great roller shutter wall cupboard, but it seems to be designed to sit on the worktop and is not the same height as their wall cupboards.
So off to the workshop to cut it down to the same height. Because of the way the cupboard is made, this meant we could only do the reduction from the top, so it was out with the roller assembly, chop off what we did not want, re-instal the roller and then back together again.