We reckon a 5 metre piece of this stuff is more than enough for a small campervan conversion. Sure, you can get away without using any at all - but it does help to keep things neat, tidy and safe. The conduit has a split all along its length so you can easily add extra cables in after your initial installation.
For larger vans, or atypical designs, make life easy for yourself and add an extra length to your order rather than running out half way through the job.
For larger vans, or atypical designs, make life easy for yourself and add an extra length to your order rather than running out half way through the job.