Keep in mind the bases for the cantilevered umbrellas are about 3’by 3’. A deal breaker for me with narrow pool deck. Also not so moveable when weighed down with 200+lbs. Even with wheels, while they may be moveable but I wouldn’t call them easily movable.You mean I shouldn't even get one built into the decking? Can you link an example of the kind of movable umbrella you're talking about?