I’d go with 3.5 if was option, but it ain’t a 4. I just moved and I’ve been putting a lot of furniture together and this was the most frustrating piece by far. The instructions are weird and vague and not all the numbers make sense and things don’t line up with places screws are started, just made own. It’s fine now that it’s together, but I’d suggest having an extra person to hold things in place and swear with for setup.