This much. I was making a delivery today, and decided to show what 1/6 of a real cord looks like tossed in the back of my pickup. The wood was previously measured out to 4' tall by 4' wide by 16" lengths, which is 1/6 of a real cord (1/2 of a face cord). The box of my truck measures 5' wide by 6' long by 16" deep.
A full size pickup can hold about twice as much, tossed in.
A full size pickup can hold about twice as much, tossed in.