I know I sound like an idiot, I just wanna know before I make a ton of them.

It will add some protection, since the wall will add more durability to what it is attached to, stacking the durabilities.

Yeah, Raisaga is right :)

Whats the best way to defend vs the shark then other than spear? im thinking of just making a huge buffer since walls dont rlly work as well as i would like them too. I would prefer it if walls cost more but protected that block from shark. You guys said it adds duriblity and I belive you but the shark takes out foundation in one run at my boat wether it has walls or not so its kinda a waste of resources.