How far gone before seats aren't usable as cores? Options

[Tdskip]

As the title says - is there a tipping point where seat are too far gone to be worth holding on it? I know that you can rebuild just about anything but is there a point where it's just not worth it?

To be more specific - how torn/missing chucks can be bottom seat cushion be and still be usable?

[mepstein]

I’m hoping 914rubber will make new foam for the bolsters. Most of the core seats on the east are coast are generally worn out and smell from humidity. All new foam (when reupholstering the seats) would pretty much cure that issue.

Fiberglass can be fixed but I’ve seen some seat bases that are so cracked, they are trash. Always check the left side of the driver seat for cracks at the middle of the bolster. They crack from holding onto the shoulder area while getting in and out of the car.