So we recently had our garden done and a new low wall built with railway sleepers as part of that. They're not nicely finished, very rough and sort of splintered (I've attached photos).
I want to make it all smooth so we can sit/stand on it without getting splinters. I know nothing about DIY - do I just need to get some rough sandpaper and work on it with that or will that just bring up more splinters? Anybody know what I should do?
Thanks in advance!