Hi, I built a lean-too off the back of my garage. I used chain-link fence fabric for the walls, and one large fence panel for the gate. I am attaching a few pics of the boat shed in progress.
Size it to fit your fleet. I now have the wall racks, pulleys from the roof, and some boats leaning on the fence wall.
The photos are from 2014 & 2015. I can take more to show more details, or folks are welcome to come see it for inspiration.
Looking for ideas on a kayak shed. I am now up to 5 boats and the garage can't fit the sea kayaks. I am thinking about making an 18-19 foot by 3 foot shelter to protect the boats.