2008 Premier PREMIER 310 BOUNDRY WATER PTX,DOUBLE DECK WITH SLIDEFULL ENCLOSURE,FRIDGE,BLENDER, 13 Bimini top,16 on-center crossmembers,Berber/Newport carpet,Birds-eye maple steering wheel,Captains Caddy,Coffee maker,Command view raised helm,Flexsteel 10-Star helm chair,Porta Potti,Sliding top cooler table,Digital depth finder,The folks at Premier build their boats to last. The 310 Boundary Waters features 16 crossmember spacing and 27 inch diameter tubes.