In theory it could be very little by mass, but a large space by volume. There are are any number of clamshell plastic containers and Styrofoam replacements covered under this. Very hard to crush unless they remain under pressure. In a home they commonly require cutting into smaller pieces.
If someone is running a small business from their house the amount of trash produced per day can be staggering.
> There are are any number of clamshell plastic containers and Styrofoam replacements covered under this.
Not sure where you live, but everywhere I lived does not accept these into recycling - so I assume these don't account for what the commenter was saying.
Where I live the recycling just says 'plastic' and you can (annoyingly) throw pretty much whatever you want in there without penalty. Recycling is very inconsist in the US.
If someone is running a small business from their house the amount of trash produced per day can be staggering.