I actually went through something similar about a year and a half ago when we moved... Having chosen the couch in the store which was a very large space - and I also did not take any measurements... so thought it would be fine, but when it arrived I nearly had a heart attack because it was so huge! lol Thankfully it did fit though.

So yes @nainaztengra, I totally understand those nerves haha!!

Anyway, I am glad it all worked out well!