How much room do i need for a 66 inch barbell.

Cisseismint

and please don't say 66 inches - lol

I've never used a barbell before but have been working out with ironmaster adjustable dumbbells for a month or 2. Now I want to get their barbell that uses the same quick lock plates as the dumbbells but its 66 inches long.

The room I am using to work out is quite small - so how much clearance do you think I need either side to add weights and to ensure I don't bang it into the walls when working out.

Here is a link to the barbell - do you think it looks okay?