We’re really excited as we are picking up our new (to us) troll 540 in a couple of weeks. I want to make new curtains but as we haven’t got the van yet I haven’t been able to measure the windows. I have seen some lovely fabric, can anyone tell me how much I will need?
Many thanks.

Don't know about your van, but our Triton had some curtains that didn't close....acres of nets which I hate....perhaps you'll need to sit in it for a while . They're so easy to make as they're so small. I made all mine to close and got rid of the nets. I find it's useful if you find yourself in a very hot place where, at night, you want to get a nice airflow going and the blinds can hinder that.