a universal table a - frame that is constructed as a unitary structure for use in a booth seating system including a series of booths . the a - frame is a basic module for the booth seating system . the a - frame includes a pair of spaced apart frame rails arranged in a longitudinal parallel relationship and in the same horizontal plane by means of legs secured to the rails adjacent the ends of the rails . the a - frame includes a pair of elements that are individually secured to the inner edge of one of the rails and each extends upwardly towards the other rail . a horizontal frame element is secured in a cantilevered relationship to the free ends of the pair of elements to thereby complete the frame . the horizontal element is adapted to mount a table top . the legs of the a - frame may be offset for permitting the stacking of the a - frame in a nesting relationship . the frame rails are also provided with mounting plates for permitting the longitudinal adjustability of the frames . a booth seating system is defined through the use of the a - frame by securing seating means to the individual frame rails .