fig1 a illustrates a section of the fence system according to a first exemplary embodiment of the present invention . in fig1 a , fence system 100 is formed from posts 102 , spaced apart from one another by a predetermined distance . this distance may be determined according to a variety of factors , such as the terrain at the installation site , customer requirements , industry standards and packaging considerations . the posts 102 may be made from a rigid polymer material such as pvc and may have a rectangular or square or substantially circular cross section . the post 102 has a hollow potion 102 c to accommodate the cross members and fence fabric discussed more fully below . lower cross member 104 is inserted into slots 116 ( shown in fig1 c ) formed at a bottom portion of each post 102 . fence fabric 108 , which may be a polymer coated chain link fence material is positioned between posts 102 and within slot 104 a of lower cross member 104 . in addition , the polymer may be a vinyl coating . as more clearly shown in fig1 b , the posts 102 have a plurality of slots 110 cut into at least one side of the post 102 . end portions or “ elbows ” 112 of the fence fabric 108 are inserted into the slots 110 to protrude into the hollow portion 102 c of post 102 . slots 110 may be sized in accordance with the gage of the fence fabric 108 and are spaced to match the spacing between each of the elbows 112 of fence fabric 108 . a retainer rod 114 is inserted through the top opening of the post and slides through the inside of the protruded “ elbows ” to retain the chain link fence to the post . retainer 114 may be a polymer rod , a vinyl coated metallic rod , or a non - coated metallic rod . the retainer 114 may also be used to retain the lower cross member 104 to the post 102 by insertion of the rod through the top portion of lower cross member 104 . to complete the frame assembly of fence 100 the upper cross member 106 is inserted through the top slots 118 formed at the upper portion of posts 102 . the cross member 106 may be inserted into slots 118 by sliding one end of upper cross member 106 into the first post 102 until the end 106 b of cross member 106 is clear to be inserted into the second slot 118 . the upper portion of the fence fabric 108 may also be inserted into a slot 106 a formed in upper cross member 106 . the upper and lower portions 108 a of fence fabric 108 may be fixed to the upper and lower cross members 104 , 106 with fasteners 120 , which may be self tapping screws or rivets for example . the fasteners 120 pass through the upper or lower portion 108 a of fence fabric 108 and into support member 104 c , 106 c ( shown in fig2 ) of cross members 104 , 106 , respectively . fig2 is a second exemplary embodiment of the present invention . in fig2 a cross - section of upper or lower cross members 104 , 106 is shown . the cross members include support members 104 b , 104 c , 106 b , 106 c integrally formed within cross member 104 , 106 , respectively . these support members 104 b , 104 c , 106 b , 106 c provide rigidity both torsionally and laterally to the cross members and forms the slot 104 a , 106 a mentioned above . as an alternative to fastening fence fabric 108 with fasteners 120 to cross member 104 , 106 , the fence fabric may be formed with a modified “ knuckle ” 108 b at one or both of the upper and lower portions of the fence fabric 108 . the knuckle 108 b may be inserted into slot 104 a , 106 a by sliding the fence fabric 108 along slot 104 a , 106 a . the opening 104 d , 106 d in the cross member 104 , 106 is dimensioned according to the thickness of the fence fabric 108 such that the fence fabric 108 fits snuggle within opening 104 d , 106 d . the knuckles 108 b of the fence fabric 108 may be bent past the point where they would be aligned to form a curled end . the spring of the fence fabric 108 permits the curl to straighten as the knuckles are pushed into the slot 104 a , 106 a . after the knuckles are inserted into the slot 104 a , 106 a any force exerted to pull the fence fabric 108 out of the slot 104 a , 106 a will be countered by the curled end of the knuckle 108 b acting on the inner surface of the cross member 104 , 106 . the fence fabric is thus locked into the slot 104 a , 106 a without the need for auxiliary fasteners . the assembly of the fence 100 may then proceed as discussed above in the first exemplary embodiment . referring back to fig1 the structural integrity of fence 100 may be enhanced by attaching coupling plate 122 to the upper or lower cross members 104 , 106 using fastener 120 . the details of the coupling plate 122 are shown with reference to fig5 . as shown in fig5 the coupling plate 122 fits within the hollow portion 102 c of post 102 and preferably snuggly between opposite walls 102 a and 102 b of post 102 . once attached with fasteners 120 , coupling plate 122 prevents cross members 104 , 106 from moving within slots 116 , 118 . referring again to fig1 to complete the assembly , a cap 124 may be placed on the end of post 102 to prevent moisture and debris from entering post 102 and to provide a finished appearance . although not illustrated in fig1 it is understood that additional sections of fence 100 may be constructed in a linear or orthogonal manner to form an enclosure ( not shown ). referring to fig6 it is also contemplated that adjacent fence sections may be set at a variety of angles by enlarging the slots 116 , 118 in post 102 such that the upper cross member 106 and lower cross member 104 may be disposed in post 102 at an angle . the coupling plate 122 may also be used to secure the additional fence sections as is understood by one of ordinary skill in the art . fig3 a - 3 c are exemplary embodiments of posts 102 of the present invention . although the posts depicted in fig3 a - 3 c have essentially square or rectangular cross - sections , it is understood that the posts 102 may also have a circular cross section to accommodate irregular shaped ( i . e . non - orthogonal ) site conditions ( see fig7 ). it may also be desirable to present different esthetics . fig3 a illustrates a corner post 302 , which has slots 304 , 306 formed within immediately adjacent side walls 308 , 310 , respectively . the angle of slots 304 , 306 are determined based on the angle of the elbows 112 of fence fabric 108 ( shown in fig1 ). preferably the angle of slots 304 , 306 may between about 30 ° and 60 ° and preferably between about 40 ° and 50 °, and most preferably about 45 °. in addition , slots 304 , 306 may have a downward slope to the right or to the left depending on the fence fabric 108 . fig3 b illustrates a line post 320 in which slots 322 , 324 are formed in opposite walls 326 , 328 , respectively . fig3 c illustrates an end post 330 in which slots 332 are formed in only one wall 334 . end post 330 may also be used as a transition between the fence system and a gate system ( not shown ). although not illustrated in fig3 a - 3 c , it is understood that in addition to the slots to accommodate the fence fabric 108 , slots 116 , 118 are also formed in the respective posts below and above each set of slots , respectively . in addition , although not shown in fig3 a - 3 c , a post may have slots 110 , 116 , 118 , formed in 3 sides of the post or in all sides of the post , as desired , to accommodate a variety of customer needs . furthermore as shown in fig7 if a post having a circular cross section is used , such as shown in fig3 d - 3 f , a fence configuration where a non - orthogonal fence layout is required , such as in irregular plots , may be accommodated . as shown in fig7 in the case of a circular cross section post , the coupling plate 122 may be formed with curved ends if desired to fit within the circular post 102 . terrain that is sloped requires knowledge of the amount of grade ( slope ) to be accommodated so proper selection of vertical posts can be made from a range of about 1 % to 25 % ( standard ) grade , although other grades of slope may be accommodated as necessary . fig4 illustrates a fence 400 that accommodates a slopped terrain . in fig4 fence 400 is installed over sloping grade 404 . post 402 has upper slots 406 , 408 and lower slots 410 , 412 offset from one another by a distance 414 consistent with the slope of grade 404 . this arrangement of slots in post 402 preferably minimizes the space between the grade 404 and the bottom of the bottom rail 414 . the result is a fence that has a stepped or tiered arrangement . in all other aspects the fence 400 is identical to the fence 100 shown in fig1 . referring to fig8 a further exemplary embodiment of the present invention is illustrated . in fig8 upper cross member 106 has a notch 802 formed in an end portion of upper cross member 106 . the slot 802 is formed in approximately the shape of an inverted “ u ” so that retainer rod 114 may engage within slot 802 through opening 806 and seat within groove 804 . as described above with respect to the first exemplary embodiment , retainer rod 114 is inserted through the top opening of the post and slides through the inside of the protruded “ elbows ” to retain the chain link fence to the post 102 . after the upper cross member 106 is inserted into the upper slot 118 of post 102 , the retainer rod 114 may be raised slightly so as to engage slot 802 . the retainer rod 114 is then seated in groove 802 thereby capturing upper cross member 106 within post 102 . this approach provides the benefit of greater structural integrity of the fence 100 . as mentioned above , the retainer 114 may also be used to retain the lower cross member 104 to the post 102 by insertion of the rod through the top portion of lower cross member 104 . as is typical with most fence systems , entry points for an area enclosed with a fence are desirable . it is contemplated that a gate system may be added to fence 100 by forming a gate in a similar manner as disclosed above with respect to the fence 100 . the gate may have similar structural elements to those of the fence 100 and scaled as required for the particular application . the gate may be attached to post 102 using conventional hinges or another means to allow the gate to open and close . although the invention has been described with reference to exemplary embodiments , it is not limited thereto . rather , the appended claims should be construed to include other variants and embodiments of the invention which may be made by those skilled in the art without departing from the true spirit and scope of the present invention .