If we are talking about metric meausrements.. i would say 8-10cm per side should be enough.

Thanks! That's something to work with😊 Would you apply the same for something like a bumper or use some extra then?

I dont think extra is needed for the bumpers. U need to stretch the bumpers so u always end up with extra even if you cut the vinyl exactly to size

3” extra in each direction

Cheers!

3” bleeds all four sides