Yeah, if you have a short garage (say 7′ ceiling like the low side of mine) a 10′ table is going to cover 7′ of floor (7’² + 7’² is pretty close to 10’²). I’m thinking tight floor space means you use 10′ of wall and stand it upright on it’s side. Very few garages will be too low for the 6′ width.
The Ikea route looks like 4x $30 to get close to the size using table tops. Maybe think of fencing sections to give the framework under the working sheet? You would have to put runners on the long sides.