Hello, do I need to put weed control cloth under a pad I am planning on put a shed and parking my boat on? Also I am thinking of using limestone.

You don’t have too however over time the mud will work it’s way to the ground level. If you put down a good quality fabric or geotech you will have a far stronger base and you won’t get mud bleed up. For the money and time it takes to do it you’ll thank me years form now.