Re: cradle or jack stands for wooden boat on the hard
Issue with jack stands is that in frosty climates they can move relative to the boat because the ground moves. You have to keep an eye or a feel for them. Keel blocks can also move. Cradle advantage is that you don't need hydraulics to move things. A chain and a hitch will do or Johnson bars and pipes. If concrete is the only option consider adding moisture sources in winter. The radio controlled model lobsterboat racing pool....
Ran Tan, Liten Kuhling, Vernon Langille, Josef W., Merry Mouth, Imp, Macavity and a quiver of unamed 'yaks.
"Bound fast is boatless man."