Workbench question

Like so many other teardrop trailer builders before me, I will build my trailer in my garage. I will need a big, strong, flat workbench to build the framing on. When finished, I need to be able to collapse/fold the workbench away in order for my car to be parked in the garage.
Seeing that I will be building 12 foot by 4 foot trailer sides, I need the workbench to be quite large. My question is about ideas (and particularly photos) of others that have gone before me, and have found ways to build strong but collapbsible benches.
Anyone with ideas and photos? Any comments will be appreciated.
Thanks.

Seeing that I will be building 12 foot by 4 foot trailer sides, I need the workbench to be quite large. My question is about ideas (and particularly photos) of others that have gone before me, and have found ways to build strong but collapbsible benches.
Anyone with ideas and photos? Any comments will be appreciated.
Thanks.

