I often have 4 people in my boat, usually on days when I'm not fishing. Just hanging out on the lake. It's always been a little awkward for the 2 people without proper seats. They set on the cooler or on the storage compartments attached the gunwale. Today I solved that with a padded bench. I bought some marine grade vinyl and 3" thick, really dense, padding. Put it all on a 2x12. I had to raise the bench up about 1" so my coolers would fit under it. Turned out pretty nice I think.