to accommodate seat cushions of different depths there may also be provided one or more elastic bands 28 which are attached to the excess cover material 12 b by means of clips 30 to assist in holding the cover taut the clips may be any well known clips such as suspender type clips for example in installing the seat cushion cover 12 a the cushion or cushions are inserted in the cover via the opening 24 the opening is then closed the cushion or cushions are then arranged to be substantially centered between the ends of the cover 12 a because the cushions can be moved with respect to the ends of the cover 12 a it will be possible to have any pattern on the cushion cover 12 a aligned with a corresponding pattern on the base cover 10 a the cover 12 a is then pulled tight at its ends and back and the excess material of the cover is folded under the cushions the covered cushions are then positioned on the cushion support as shown in fig1 the cushion cover of this invention can be made of any slip cover material and may be woven or knit fabric as an example the cushions 22 a and 22 b would have a depth from the front elongated edge to the rear of 26 inches and would accommodate a cushion thickness of 6 inches the length of the cushion cover would depend on the distance from one end of the cushion to the other while allowing sufficient excess material to be folded under the cushions these dimensions are not critical and a wide range of dimensions may be employed for the cushion slip cover provided that the cover is large enough to.