I'm building a small concrete wall for an inground sandbox. The wall will be about 1'4" tall 4" thick and the longest 2 sides run just over 80" long, it is an L shape and the other sides are fairly short. Do I need rebar for this, or can I just use a concrete reinforced with fiber? Do I need footings?
If this is a kids sandbox I'm assuming they'll likely outgrow it at some point. When the time comes to remove it you won't want rebar in there. If it doesn't serve any other purpose than a border for the sandbox then I'd skip the rebar.