How to build a garden hutch using repurposed beach planks
Hi Val, here's an AMAZING potting bench with plans, it also includes a sink but of course you could go with or without it. https://www.settingforfour.com/make-it-diy-potting-bench-with-sink/
Here is an idea for you
Here are some ideas from other Hometalkers
After your hard work, put 2 full coats UV stable polyurethane on it, like Spar Varnish or Marine Varnish.
Here's an idea: https://www.youtube.com/watch?v=F6vNQN2F2uc
Try making a letter H bench then re enforce it so it’s strong then add atop with a board on each side then two in between for a shelf
This one is made from pallet boards, perhaps they're similar in size and shape to your planks https://www.hometalk.com/988571/pallet-potting-table. You could also use an old table or dresser and top it with the boards you have.
Hi Val, this one may help you