as shown in fig1 a merchandising display 10 in accordance with the invention typically comprises several similar support units 12 and 14 arranged in side - by - side relationship . unit 12 has a base 16 and a vertical part 18 , the latter forming a wall on which various merchandise supports such as a wire shelf 20 or a rod 22 can be hung . for versatility , rigid posts 24 may be provided at both edges of the vertical part of each unit , each post having a vertical array of slots to which long shelves ( not shown ) can be attached . because they are provided with bases , the units can be free - standing . braces , such as brace 26 can be provided at one or both edges of the vertical part of each unit to improve structural strength and rigidity , and also to provide a barrier for use as a divider and for aesthetic purposes . as shown in fig1 the upper part of the vertical wall of unit 12 has a series of horizontally elongated panels 28 , separated by narrow , horizontally extending slots 30 with which brackets of the shelf 20 and rod 22 are engaged . the lower part of the vertical wall is constituted by a large panel 32 and is not slotted . the upper part of the vertical wall of unit 14 is constituted by a set of horizontally elongated panels 34 similar to panels 28 , with slots 36 between them of receiving the brackets of various merchandise supports such as wire shelf 38 . the lower part of the wall of unit 14 is an open wall consisting of an array 40 of vertical and horizontal wires . shelves or other merchandise supports can be engaged with the horizontal wires in the same manner in which they are engaged in the slots between panels . as will be apparent from the following description , the array of wires , which is exposed at the lower part of unit 14 , extends behind the panels 34 on the upper part of the unit , and a similar array of wires is provided behind the upper and lower panels of unit 12 . the support units may be simply situated in side - by - side relationship as shown in fig1 or may be bolted together to prevent them from being moved . various arrangements of the units are possible . for example , in many retail establishments , the units will be disposed in back - to - back relationship as aisle dividers , so that merchandise can be displayed on both sides . as shown in fig2 the array of wires consists of a first set of vertical wires 42 , and a second set of spaced , parallel horizontal wires . the horizontal wires , which are in transverse , orthogonal relationship with the wires 42 of the first set , are connected to the wires 42 by welds at their intersections so that the horizontal and vertical wires form a rigid grid , with the vertical wires supporting the horizontal wires . the horizontal wires are disposed in pairs , the wires of each pair being spaced from each other by a distance greater than the spacing between adjacent pairs . thus , as shown in fig2 a first pair of wires , consisting of wires 44 and 46 , is located above a second pair of wires 48 and 50 , and similar pairs of wires are provided respectively above wire 44 and below wire 50 . the spacing between the wires of each pair is uniform , and larger than the spacing between adjacent pairs . that is , the spacing between wires 44 and 46 is the same as the spacing between wires 48 and 50 , but much larger than the spacing between wires 46 and 48 . a horizontally elongated panel 34 is engaged with the wires of each pair , but a slot 36 is provided between adjacent panels to receive hooks 52 of a bracket ( not shown ), which may be a bracket of a shelf such as shelf 38 ( fig1 ) or merchandise support rod 22 ( fig1 ). as shown in fig3 panel 34 has upper and lower flanges which embrace the pair of wires 44 and 46 . the upper flange 54 engages the top of wire 44 and the lower flange 56 engages the bottom of wire 46 . fig4 shows in greater detail the manner in which the panel 34 is engaged with horizontal wires 44 and 46 . the horizontal wires are secured to the vertical wires by welds 58 and 60 . these welds are preferably produced by precision resistance welding , which minimizes weld build up at the locations at which the horizontal wires meet the vertical wires . therefore , as shown in fig4 clearances 62 and 64 are provided respectively above weld 58 and below weld 60 between the horizontal wires and the vertical wires . flange 54 has an inwardly bent edge portion 66 , which fits into clearance 62 , and flange 56 has a similar inwardly bent edge portion 68 , which fits into clearance 64 . the panels have some resilience , and therefore , they can be snapped onto the wires , and held in place by virtue of the engagement of the inwardly bent edge portions 66 and 68 of the flanges with the horizontal wires . the panels remain firmly attached to the wires in normal use , but can be removed from the wire supports by the use of a suitable prying device . fig5 shows two panels 34 engaged with horizontal supporting wires . the upper flange of the lower panel 34 is engaged with the top of horizontal wire 48 and the lower flange of the upper panel 34 is engaged with the bottom of wire 46 . these two flanges are separated from each other by a short distance to provide slot 36 . hook 52 of a shelf bracket 70 is an l - shaped hook , having a horizontal part 72 which extends through slot 36 and rests on the upper flange of the lower one of the two panels 34 . a vertical part 74 of the l - shaped hook engages the rear of wire 46 . the bracket also includes a sheet metal element 76 having a cross section in the shape of an inverted l . this element is welded to the horizontal part 72 of the bracket , and its vertical part engages the face of the lower one of the two panels 34 . thus , the bracket engages the support at three points : the top of the upper flange of the lower panel , the rear of wire 46 , and the front face of the lower panel . engagement at the first point supports the bracket against downward translation , and the engagement at the latter two points , supports the bracket against rotation . as will be apparent from fig5 the horizontal wires meet vertical wires 42 in an imaginary vertical plane . as shown in fig4 the clearances provided above and below the welds allow the bent edges of the flanges of the panels to engage the horizontal wires in close proximity to the imaginary vertical plane and in such a way that the panels are prevented from disengagement from the wires in normal use . fig6 shows a support unit similar to unit 12 of fig1 in cross - section , with plural panels 28 attached to the upper wires , and a single , large panel 32 spanning several pairs of horizontal wires . panel 32 has an upper flange connected to wire 78 , which is an upper wire of a first pair , and a lower flange connected to wire 80 , which is a lower wire of a different pair . as will be apparent , a wide variety of panel arrangements can be utilized , and the configuration of the panels can be readily changed by removing panels from the wire grids and reattaching them at different locations . fig7 shows an alternative embodiment of the invention . in this embodiment , panels 82 are configured so that instead of embracing a pair of horizontal wires 84 , a panel is provided with outwardly concave flanges 86 and 88 situated between the wires of the pair . in this embodiment , the horizontal wires are exposed , and the horizontal part 90 of a merchandise support bracket directly engages the top of a horizontal wire 84 . otherwise , the arrangement is similar to the arrangement in fig5 and the panels can be easily snapped into place and removed . various modifications can be made to the merchandise display . for example , instead of being situated in a free - standing , portable unit , the wire grid can be permanently installed in a retail building , for example against or closely adjacent a permanent wall in a floor - to - ceiling arrangement . alternatively , instead of providing one - sided units in back - to - back relationship , a single , two - sided , free - standing unit having two , parallel , closely spaced wire grids can be provided . although in most cases , the wires of the wire grid will meet one another in an imaginary vertical plane , other arrangements are possible . for example , the upright wires can be oblique or curved , and the transverse , panel - engaged brackets , and the panels which engage them , can be curved . although the panels are preferably light gauge , sheet steel panels , as an alternative , the panels can be formed of various other materials , for example , brass , stainless steel or plastics . the panels can also be formed with textured or plated surfaces . perforations can be provided in the panels to accept pegs or other accessories , and clips can also be provided for engagement of the panels with the vertical wires . it is also possible to form the panels in configurations other than the flat - faced - configuration shown . for example , the panels can be formed with horizontal ledges for displaying articles or for aesthetic purposes . finally , the flanges of the panels can have various configurations . for example , the flanges can be rounded to conform to the shapes of the horizontal wires with which they are engaged . still other modifications can be made to the embodiments of the merchandising display described herein , without departing from the scope of the invention , as defined by the following claims .