Kiwi boat, has 6 chambers plus floor, never finished with it but here's configuration after 3.5 years... Big old box holds motor, there's a transom and jackass that snaps onto rear frame cross member but not shown. Four bay "handrail frame" (and proud of it - means I can adjust rails to fit different coolers/dry box/ etc.), cooler fits in front of dry box and I sit on it to row. Holds as much as any 18', has two Grand trips and 4 Cat trips on it. Southco latches for front hatch. Have spent WAY too much time on it, but nobody making what I wanted when I built it (six months later saw a MadCatr frame and that's what it mostly closely resembles - sides disassemble and everything breaks down into pieces this old man can move around easily - even the monster box weighs in at 56#). Footwell is width of 50 cal ammo, side or "captain's" boxes have same capacity as three 20 mils (rocket boxes). If I had to do it again I wouldn't, learned way too much about working with aluminum (way less fun than wood).