Free motorboat plans for the backyard home builder, build your own speed boat, cabin cruiser, runabout or utility boat using these simple plywood designs.. The squirt is a small runabout for the young at heart. but don’t let her size fool you; she offers a lot in her short length. this little boat will move out quicker. This is the boats, dories and other watercraft category of information. this free woodworking plans list features an extensive list of free building projects to.