The rb12 boat plans detail the epoxy composite plywood design for our version of this small classic runabout. shop for wooden runabout boat kits at bateau!. Free motorboat plans for the backyard home builder, build your own speed boat, cabin cruiser, runabout or utility boat using these simple plywood designs.. If you want a mahogany runabout that replicates boats of yesteryear, but don’t want to pay. online catalogs. boat plans catalog building mahogany runabouts about.