12'6" boards are the premier class of SUP. World championships are held internationally in this length - and for long tours, for training and fitness, but also for leisurely lake cruises, this class offers excellent directional stability, carrying capacity and a little more speed than shorter boards. All the boards in this test are sufficiently stiff with a thickness of around six inches, although some are a little firmer than average.
You can find the full test report with these boards in SUP Magazine 2018, which you can still order - see below:

Deputy Editor in Chief surf