Bump, I would like to know this too... 😛
Any geeks out there know ? Even an obscure terminal command would work for me.
On every mac I've been on the Finder is set to a default "wide" view, much like many screen these days. When viewing a Finder window like that in Icon view, an unusually large space is left on the right hand side as it's too wide for 3 folders but not wide enough for 4. There must be a default size "set" somewhere, surely that can be changed ?
I realise I can edit the com.apple.finder.plist file found in my user library>preferences folder, but does anyone know what to add to make all future windows open to a default size. Right now it's full of random settings on every folder I've ever fiddled with, if I trashed it and restarted, it'd go back to a default setting, I'd love to edit that default setting to never worry about again.
Wow this is complicated.