I’ve recently had an enquiry about a T2 campervan that needs a new headlining. My technique for measuring out the material is to use clear plastic sheeting and suspend it from the bows with tape. I remember where I used to work, my boss would measure the gap in the centre and taper it towards the edges. I’ve had a go in the past on a Beetle but my taper was too narrow and made it impossible to install. I was wondering if anyone have any tips or tricks on how to measure them more accurately, particularly the tapers. And does the measuring method work for more complicated shapes such as a 1950s Ford Pop or is the clear plastic method better for those. Thanks in advance