Patent Publication Number: US-2011047695-A1

Title: Drain assembly

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This is a non-provisional application based upon U.S. provisional patent application Ser. No. 61/237,059, entitled “DRAIN ASSEMBLY”, filed Aug. 26, 2009, which is incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to drain assemblies, and, more particularly, to linear drain assemblies. 
     2. Description of the Related Art 
     Water drains can be used in many different applications. One such application is a shower drain. A linear shower drain assembly is known which includes a linear drain body including a horizontal wall or flange from which a linear trough depends, the flange surrounding the trough. The trough is pitched such that water entering the trough drains from the longitudinal ends of the trough downwardly towards a vertical, generally cylindrical outlet which intercepts the trough and is wider in diameter than a width of the trough. An integral waterproofing membrane is factory-attached to the drain body around the whole perimeter of the trough. A stainless steel strainer (a drain cover) covers the trough and is coupled to the drain body during installation of the drain assembly. 
     What is needed in the art is a drain assembly which is field adjustable in length and can thus be selectively attached to at least one of a plurality of end devices at a plurality of positions along a length of at least one main body of the drain assembly. 
     SUMMARY OF THE INVENTION 
     The present invention provides a drain assembly which is field adjustable in length and can thus be selectively attached to at least one of a plurality of end devices at a plurality of positions along a length of at least one main body of the drain assembly. 
     The invention in one form is directed to a drain assembly including a main body including a substantially horizontal first wall extending in a longitudinal direction of the main body, a drainage channel depending from the first wall and extending in said longitudinal direction, a substantially vertical second wall depending from the first wall and extending in the longitudinal direction, and a first longitudinal end, the first wall, the drainage channel, and the second wall together forming a first attachment channel configured for receiving and attaching to a first attachment feature of an end device at the first longitudinal end. 
     The invention in another form is directed to a method of using a drain assembly, the method including: providing a drain assembly including a main body which includes a substantially horizontal first wall extending in a longitudinal direction of the main body, a drainage channel depending from the first wall and extending in the longitudinal direction, a substantially vertical second wall depending from the first wall and extending in the longitudinal direction, and a first longitudinal end, the first wall, the drainage channel, and the second wall together forming a first attachment channel; receiving, by the first attachment channel, a first attachment feature of an end device at the first longitudinal end; and attaching the first attachment channel to the first attachment feature at the first longitudinal end. 
     An advantage of the present invention is that it is adjustable in length and can run continuously from wall-to-wall in a shower. The drain assembly is adjustable in length in that (a) the main body can be field cut (which can be readily accomplished considering that the drain assembly is made of PVC, or any other suitable material) to the desired length to reduce the length of the drain assembly, or (b) a plurality of main bodies can be coupled to one another in an end-to-end fashion, perpendicularly to one another, and/or at any predetermined angular relationship relative to one another (using junction members, corner members, and/or, more generally, coupling members) and thereby increase the overall length of the drain assembly (depending upon the environment in which the drain assembly is installed, a main body, then, can be field cut and also coupled with another main body). 
     Another advantage of the present invention is that it provides that the shower floor may be pitched in only one or two directions; therefore, any size format tile on the shower floor is possible. Stated differently, a large drain tile can be used with the drain assembly of the present invention. For instance, 12 inch×12 inch or 16 inch×16 inch drain tiles can be used with the drain assembly of the present invention. By removing extra pitches/planes adjacent the drain assembly, a mosaic tile does not have to be used. By way of comparison, the largest mosaic tile is typically 3 inch×3 inch. 
     Yet another advantage of the present invention is that it is designed to work with most of the primarily used, existing shower floor systems already on the market. This allows the installers of drains the ability to use their current system and techniques. 
     Yet another advantage of the present invention is that it does not have a decorative drain cover (which can be in the form of a decorative grill). Without a decorative cover, the drain tile of the shower floor can come right next to the water channel of the main body of the drain assembly. Further, the bathroom industry overall is concerned with color coordination between such parts and items like faucets, shower door hardware, etc. The absence of a decorative drain cover allows the distributor the flexibility of not having to stock multiple pieces and finishes, which is often the source of warranty issues related to shower drains. Further, the absence of a decorative drain cover made of metal allows the drain assembly to be field cut as necessary by an installer of the drain assembly. 
     Yet another advantage of the present invention is that it does not necessarily provide that the waterproofing membrane is already integrated with the drain assembly prior to installation. Thus, the drain assembly can be field cut as necessary. 
     Yet another advantage is of the present invention is that it provides that a drain screen can optionally by slid from the underside into a substantially vertical drainage device of the main body of the drain assembly, the drainage device being configured for connecting to, for example, house plumbing. 
     Yet another advantage of the present invention is that it allows for wheel-chair accessibility into a shower. 
     Yet another advantage of the present invention is that the drain assembly does not include any steel or metallic parts. 
     Yet another advantage of the present invention is that the drainage channel of the main body of the drain assembly can be transversely cut therethrough when adjusting the length of the main body, the end device then being able to be secured to the new longitudinal end of the main body. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention will be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, wherein: 
         FIG. 1  is a sectional view of a shower floor system including a drain assembly according to the present invention, the cross-section of the main body being taken along line  1 - 1  of  FIG. 5 ; 
         FIG. 2  is a schematic view of a drain assembly according to the present invention; 
         FIG. 3  is a perspective view of a drain assembly according to another embodiment of the present invention, the main body of the drain assembly being shown in  FIG. 1 ; 
         FIG. 4  is a perspective view of the drain assembly of  FIG. 3 ; 
         FIG. 5  is a bottom view of the main body of the drain assembly of  FIG. 3 , the floor endcaps of  FIG. 3  being broken away; 
         FIG. 6  is a perspective, cross-sectional view of the main body of the drain assembly of  FIG. 5 , the cross-section being taken longitudinally through the top dead center of the main body along line  6 - 6  of  FIG. 5 , a drain screen also being shown but not in cross-section; 
         FIG. 7  is a perspective view of the floor endcap of  FIG. 3 , the floor endcap being shown in relation to a subfloor; 
         FIG. 8  is a perspective view of a wall endcap according to the present invention, the wall endcap being shown in relation to a backerboard; 
         FIG. 9  is a perspective view of the wall endcap of  FIG. 8  attached to the main body of  FIG. 5 , with portions of the main body being broken away; 
         FIG. 10  is a bottom view of the drain assembly of  FIG. 9 ; 
         FIG. 11  is a bottom view of the drain assembly of  FIG. 10 , with a portion of the main body of  FIG. 10  being broken away; 
         FIG. 12  is a perspective view of a linear junction member according to the present invention; 
         FIG. 13  is a perspective view of the drain assembly according to another embodiment of the present invention, the drain assembly including the linear junction member of  FIG. 12 ; 
         FIG. 14  is a perspective view of a corner member according to the present invention; 
         FIG. 15  is a perspective view of the drain assembly according to another embodiment of the present invention, the drain assembly including the corner member of  FIG. 14 ; and 
         FIG. 16  is a perspective view of the drain assembly of  FIG. 15 . 
     
    
    
     Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate embodiments of the invention, and such exemplifications are not to be construed as limiting the scope of the invention in any manner. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring now to the drawings, and more particularly to  FIG. 1 , there is shown a shower floor system  20  which generally includes floor joists  22 , a subfloor  24  (such as a three-quarter inch plywood subfloor), a drain assembly  26  according to the present invention, an underlayment  25  (which can be, for example, concrete and serve to provide a slope, such as a two degree slope, of the surrounding floor to drain assembly  26 ), a drain pipe  27  (such as a two inch polyvinyl chloride drain pipe) which forms part of the environment to which drain assembly  26  connects and can be, for example, a part of house plumbing, a waterproofing membrane  28  (which can be painted on as a coating or can be a glued-on fabric member, the glue being bought with the membrane fabric), and ceramic floor tiles  30  mounted on top of the waterproofing membrane  28 . As a fabric, waterproofing membrane  28  can have a seam (not shown) running in longitudinal direction  52  and positioned over subfloor  24 . The structural features in  FIG. 1  are not necessarily proportioned to correct size. Drain assembly  26  can be a drain for a shower, a pool, a sink, or the like. With regard to a swimming pool, drain assembly  26  could be applied to the perimeter of the swimming pool (this is provided merely by way of example and not be way of limitation). The drain assembly  26  discussed herein is in reference to a shower drain; this application of the drain assembly of the present invention, however, is provided by way of example and not by way of limitation. Drain assembly  26  is a slot/trough drain which can be installed into a tiled shower floor. 
       FIG. 2  shows that drain assembly  26  includes at least one main body  32  and at least one end device  34 . Main body  32  can also be referred to as a drain body. Main bodies  32  and end devices  34  of drain assembly  26  can be made of polyvinyl chloride, of another polymer, or of any suitable material. In a shower application, for example, main body  32  provides drainage for water accumulating or falling on the shower floor (such as on tiles  30 ). As also shown in  FIG. 2 , drain assembly  26  can include at least two main bodies  32  joined together by an end device  34 , each terminating end of drain assembly  26  also having attached thereto an end device  34 . Depending upon the application, drain assembly  26  can optionally include three or more main bodies  32  coupled to one another in a straight line and/or at right angles using end devices  34 C or  34 D; such a coupling of three main bodies  32  could form a generally U-shaped drain assembly  26 , by way of example. Further, each main body  32  can include two end devices  34  attached to the longitudinal ends  36  of the respective main body  32 , as shown in  FIG. 2 . End device  34 , as discussed below, refers generically to a floor endcap  34 A, a wall endcap  34 B, a linear junction member  34 C, or a corner member  34 D. 
     Main body  32 , as shown in  FIGS. 3-6 , is a linear structure and includes a first longitudinal end  36  and a second longitudinal end  38  opposing first longitudinal end  36 . Main body  32  includes a substantially horizontal first wall  40 , a drainage channel  42 , a substantially vertical second wall  44 , a substantially vertical third wall  46 , a substantially vertical drainage device  48 , and substantially vertical support walls  50 . Main body  32  can be a monolithic structure such that the main body  32  is a single piece made of the same material (i.e., polyvinyl chloride). Main body  32  is not formed monolithically with, or formed attached to, any of end devices  34 ; rather, end devices  34  (whichever ones are needed according to the application) are attached during installation of drain assembly  26  in a shower, for example, as disclosed herein. Main body  32  can be formed by injection molding (floor end device  34 A, wall end device  34 B, linear junction member  34 C, and corner member  34 D each can be formed as monolithic pieces and formed by injection molding as well). Main body  32  can have a full length for the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38  of sixty inches (five feet) from the manufacturer. 
     First wall  40  extends in a longitudinal direction  52  of main body, longitudinal direction  52  being shown by double arrow  52 . As shown in the drawings, first wall  40  can alternatively be viewed as two distinct walls which are spaced apart by drainage channel  42 ; however, for simplicity, first wall  40  is discussed herein as a wall in the singular, but it is understood that first wall  40  includes first and second sections (which are shown but not separately labeled in the drawings) which are coplanar relative to one another and spaced apart from one another by drainage channel  42 . First wall  40  is flat. First wall  40  includes a plurality of fastener holes  54  which are spaced apart along both longitudinal sides of first wall  40 ; fasteners (not shown), such as screws, project respectively through fastener holes  54  and are used to mechanically fasten main body  32  to subfloor  24 . First wall  40  further includes two adhesive channels  56  (which are shallow grooves formed into first wall  40 ) which extend in longitudinal direction  52  and parallel to one another (adhesive channels  56  can run from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 ), which are spaced apart by drainage channel  42 , and which are formed respectively on the two sections of first wall  40 . Adhesive channels  56  are shallow and can be used to receive an adhesive to adhere waterproofing membranes  28  to first wall  40 . 
     Drainage channel  42  depends from first wall  40  and extends in longitudinal direction  52 . In depending from first wall  40 , drainage channel  42  extends below the bottom surface of first wall  40 . As shown in  FIGS. 1 and 3 , drainage channel  42  is open facing upwards and includes a generally U-shaped cross-section having two substantially vertical walls  58  and a substantially horizontal bottom wall  60  connecting and extending between the two vertical walls  58 . Drainage channel  42  can also be referred to as a slot or trough. Drainage channel  42  is linear and runs at least substantially from first longitudinal end  36  to second longitudinal end  38 , drainage channel  42  being intercepted by vertical drainage device  48 ; more specifically, drainage channel  42  runs from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 , but for the break provided by vertical drainage device  48 . Drainage channel  42  is sloped; more specifically, drainage channel  42  is sloped (angled/pitched) downwardly running from first longitudinal end  36  to vertical drainage device  48 , and similarly drainage channel  42  is sloped downwardly running from second longitudinal end  38  to vertical drainage device  48  (drainage channel  42  runs the full length of main body  32  except for being intercepted by vertical drainage device  48 ). Drainage channel  42  is thus in fluid communication with vertical drainage device  48 . The slope of drainage channel  42  causes water, for example, entering drainage channel  42  to flow, under the force of gravity, to vertical drainage device  48 . As such, drainage channel  42  thus provides a fluid flow path which causes water which enters drainage channel  42  to flow downwardly in drainage channel  42  to vertical drainage device  48 ; upon falling into vertical drainage device  48 , the water flows through drainage device  48  and into the plumbing network of the environment into which drain assembly  26  is installed (such as house plumbing, of which drain pipe  27  is a part).  FIG. 6  shows the sloped configuration of drainage channel  42 . It is understood that the interior of the U-shaped channel can be formed such that the corners where the vertical walls  58  meet horizontal wall  60  are curved, rather than forming sharp right-angle corners. Tile  30  can be laid adjacent drainage channel  42 , as indicated in  FIG. 1 . 
     Second wall  44  depends from first wall  40  and extends in longitudinal direction  52 . In depending from first wall  40 , second wall  44  extends below the bottom surface of first wall  40 . Second wall  44  is attached to the bottom surface of first wall  40  and is perpendicular to first wall  40 . Second wall  44  is linear and runs from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 ; a portion of second wall  44  can merge with and form a part of drainage device  48 . Second wall  44  is spaced apart from and runs parallel to drainage channel  42 . 
     Third wall  46  is substantially identical to, and substantially mirrors, second wall  44 . Third wall  46  depends from first wall  40 , extends in longitudinal direction  52 , and is spaced apart from and parallel to second wall  44  and drainage channel  42 , drainage channel  42  being between second and third walls  44 ,  46 . In depending from first wall  40 , third wall  46  extends below the bottom surface of first wall  40 . Third wall  46  is attached to the bottom surface of first wall  40  and is perpendicular to first wall  40 . Third wall  46  is linear and runs from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 ; a portion of third wall  46  can merge with and form a part of vertical drainage device  48 . 
     First wall  40 , drainage channel  42 , and second wall  44  together form a first attachment channel  62 . First attachment channel  62  is configured for receiving and attaching to a first attachment feature  66  of end device  34  at first longitudinal end  36  (more specifically, at the transverse edge of first longitudinal end  36 ). First attachment channel  62  is also configured for receiving and attaching to an attachment feature  66  (first and second attachment features  66  of each of end devices  34 A,  34 B,  34 C,  34 D are substantially identical) of end device  34  at second longitudinal end  38  (more specifically, at the transverse edge of second longitudinal end  38 ). First attachment channel  62  has a generally U-shaped cross-section. While drainage channel  42  is an upwardly facing U-shaped channel (the open portion of the U faces upwardly), first attachment channel  62  is a downwardly facing U-shaped channel (the open portion of the U faces downwardly). First attachment channel  62  is formed by the bottom surface of first wall  40 , an outwardly facing surface of one vertical wall  58  of drainage channel  42 , and an inwardly facing surface of second wall  44 . First attachment channel  62  can also be referred to as a slot or trough. First attachment channel  62  is linear and runs at least substantially from the transverse edge  37  of first longitudinal end  36  to the transverse edge  37  of second longitudinal end  38 ; first attachment channel  62  can run from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38  except for being interrupted by vertical drainage device  48 , as shown in  FIGS. 3-6 . Thus, first attachment channel  62  extends at least substantially a first length  68  running from vertical drainage device  48  to first longitudinal end  36  and a second length  70  running opposingly from vertical drainage device  48  to second longitudinal end  38 . Similarly, first attachment channel  62  can be interrupted periodically by support walls  50 , as shown in  FIGS. 4-6 . Even with these interruptions by vertical drainage device  48  and support walls  50 , it is understood that first attachment channel  62  runs at least substantially from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 . 
     First wall  40 , drainage channel  42 , and third wall  46  together form a second attachment channel  64 . Second attachment channel  64  is configured for receiving and attaching to a second attachment feature  66  of end device  34  at first longitudinal end  36  (more specifically, at the transverse edge of first longitudinal end  36 ). Second attachment channel  64  is also configured for receiving and attaching to an attachment feature  66  (first and second attachment features  66  of each of end devices  34 A,  34 B,  34 C,  34 D are substantially identical) of end device  34  at second longitudinal end  38  (more specifically, at the transverse edge of second longitudinal end  38 ). Second attachment channel  64  has a generally U-shaped cross-section. While drainage channel  42  is an upwardly facing U-shaped channel (the open portion of the U faces upwardly), second attachment channel  66  is a downwardly facing U-shaped channel (the open portion of the U faces downwardly). Second attachment channel  66  is formed by the bottom surface of first wall  40 , an outwardly facing surface of one vertical wall  58  of drainage channel  42 , and an inwardly facing surface of third wall  46 . Second attachment channel  64  can also be referred to as a slot or trough. Second attachment channel  64  is linear and runs at least substantially from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 ; second attachment channel  64  can run from the transverse edge  37  of first longitudinal end  36  to the transverse edge  37  of second longitudinal end  38  except for being interrupted by vertical drainage device  48 , as shown in  FIGS. 3-6 . Thus, second attachment channel  64  extends at least substantially first length  68  running from vertical drainage device  48  to first longitudinal end  36  and second length  70  running opposingly from vertical drainage device  48  to second longitudinal end  38 . Similarly, second attachment channel  64  can be interrupted periodically by support walls  50 , as shown in  FIGS. 4-6 . Even with these interruptions by vertical drainage device  48  and support walls  50 , it is understood that second attachment channel  64  runs at least substantially from the transverse edge of first longitudinal end  36  to the transverse edge of second longitudinal end  38 . Second attachment channel  64  is substantially identical to, and substantially minors, first attachment channel  62 . Second attachment channel  64  is spaced apart from and parallel to first attachment channel  62 . Each end device  34  is selectively attachable to one of first longitudinal end  36  and second longitudinal end  36  by way of first and second attachment features  64 ,  66  and first and second attachment channels  64 ,  66 . First and second attachment channels  64 ,  66 , each of which can be referred to as slots, are thus formed on the underside of main body  32 . 
     Vertical drainage device  48  is positioned between first and second longitudinal ends  36 ,  38  and intercepts drainage channel  42 . Vertical drainage device  48  is in fluid communication with drainage channel  42 ; more specifically, vertical drainage device  48  is in fluid communication with both wings of drainage channel  42  (each wing running from a respective longitudinal end  36 ,  38  to vertical drainage device  48 ).  FIGS. 4 and 5  show that vertical drainage device  48  can have a generally circular cross-section (a cylindrical piece) with a stepped diameter, vertical drainage device  48  being attached to drain pipe  27  of the surrounding environment (i.e., house plumbing). The stepped diameter of vertical drainage device  48  forms a shoulder  72  which provides a stop for stopping house drain pipe  27  and thus ensuring proper fitting of house drain pipe  27 . Vertical drainage device  48  can be glued to the house drain  27  using, for example, a standard polyvinyl chloride rubber cement. Vertical drainage device  48  serves as a liquid outlet for main body  32  and thus for drain assembly  26 . 
       FIG. 6  shows a drain screen  74  which can be included as part of the drain assembly  26  according to the present invention.  FIG. 6  shows main body  32  with a cross-sectional slice taken through the top dead center of main body  32 .  FIG. 6  shows drain screen  74  installed into vertical drainage device  48  of main body  32 , drain screen  74  not being shown in section. Drain screen  74  abuts shoulder  72  (which provides the stepped diameter of the vertical drainage device  48 ) of the vertical drainage device  48 . The drain screen  74  is an optional structural feature of drain assembly  26  of the present invention; as such, drain screen  74  does not have to be used as a part of drain assembly  26 . Vertical drainage device  48  can be formed longer when drain screen  74  is used, as opposed to when drain screen  74  is not used. Drain screen  74  (which can be variously referred to as a grate, a strainer, or a drain guard) serves as a screen to prevent objects of a predetermined size from draining into the drain pipe  27  of the surrounding environment. Drain screen  74  is not a decorative cover, such a decorative cover being omitted from the present invention; on the other hand, drain screen  74  can include decorative aspects. Drain screen  74  can be made of the same material (or another material) as the remaining portions of drain assembly; drain screen  74  can be made of polyvinyl chloride. Drain screen  74  can be formed as a separate piece relative to main body  32 ; in other words, drain screen  74  may not be formed integral or molded with main body  32  but may be an add-on piece relative to main body  32 . Alternatively, drain screen  74  can be formed integral with (i.e., molded with) main body  32 . As a separate piece, however, drain screen  74  can be slid into vertical drainage device  48 —by way of the bottom opening of vertical drainage device  48 —until drain screen abuts shoulder  72  of vertical drainage device  48 . Drain screen  74  is thus sandwiched on one side by shoulder  72  of vertical drainage device  48  and on the other side by the drain pipe  27  of the environment; drain screen  74  is thereby held in place. 
     Main body  32  includes a plurality of substantially vertical support walls  50 . Support walls  50  depend from first wall  40  and thus are attached to and extend below the bottom surface of first wall  40 . Support walls  50  are parallel relative to one another and are perpendicular to second wall  44 , third wall  46 , and drainage channel  42 . Each support wall  50  runs from the inwardly facing surface of second wall  44  to the outwardly facing surface of one vertical wall  58  of drainage channel  42  and then from the outwardly facing surface of the other vertical wall  58  of drainage channel  42  to the inwardly facing surface of third wall  46 . Support walls  50  do not traverse through drainage channel  42 , as this would form a blockage within drainage channel  42 . Each support wall  50  is the same height as second and third walls  44 ,  46 . Support walls  50  provide structural support and reinforcement to second wall  44 , third wall  46 , and drainage channel  42 . 
     As shown in  FIGS. 2-4 ,  9 - 11 ,  13 , and  15 - 16 , end devices  34 A,  34 B,  34 C,  34 D attach individually to first and second longitudinal ends  36 ,  38  of main body  32  during installation of drain assembly  26  in the surrounding environment, such as a shower. Stated another way, any of end devices  34 A,  34 B,  34 C,  34 D can be selectively attached to first longitudinal end  36  or second longitudinal end  38 , depending upon the needs of the installer during installation of drain assembly  26 . For example, main body  32  can have end device  34 A attached to first longitudinal end  36  and end device  34 B attached to second longitudinal end  38 . On the other hand, end device  34 B can be attached to first longitudinal end  36 , and end device  34 A can be attached to second longitudinal end  38 . Or, end device  34 C can be attached to first longitudinal end  36 , and end device  34 D can be attached to second longitudinal end  38 . End devices  34 A,  34 B,  34 C,  34 D, first and second longitudinal ends  36 ,  38  (along with first and second attachment channels  62 ,  64 ) can be selectively attached to one another in any combination, depending upon the needs of the installer. End devices  34 C and  34 D are not connectors for strainers; rather end devices  34 C and  34 D serve as connectors for main bodies  32 . 
     End device  34  is selectively one of a floor endcap  34 A, a wall endcap  34 B, a linear junction member  34 C, and a corner member  34 D. Each end device  34  has two attachment features  66 , which can be referred to as first and second attachment features  66 . First and second attachment features  66  themselves are substantially identical to one another. Further, first and second attachment features  6  of each of floor endcap  34 A, wall endcap  34 B, linear junction member  34 C, and corner member  34 D are substantially identical to one another and are thereby selectively attached to main body. In other words, any of end devices  34 A,  34 B,  34 C,  34 D can be attached to main body  32  using first and second attachment features  66 . First attachment feature  66  can attach to first attachment channel  62  or second attachment channel  64 , depending upon whether the respective end device  34  is attached to first or second longitudinal end  36 ,  38 . Similarly, second attachment feature  66  can attach to first attachment channel  62  or second attachment channel  64 , depending upon whether the respective end device  34  is attached to first or second longitudinal end  36 ,  38 . Thus, first and second attachment features  66  are connected respectively to first and second attachment channels  62 ,  64 . Further, first and second attachment features  66  are connected respectively to first and second attachment channels  62 ,  64  using an adhesive therebetween; thus, end devices  34 A,  34 B,  34 C,  34 D can be directly glued to first and second attachment channels  62 ,  64 . A primer can first be applied to end device  34 , particularly to attachment features  66  and the areas of end device  34  surrounding attachment features  66  which are likely to come into contact with main body  32  when end device  34  is connected to main body  32 ; the primer can also be applied to the respective longitudinal end  36 ,  38  of main body  32  in the areas which are expected to come into contact with end device  34 . After priming main body  32  and end device  34  as described, a glue can be applied to the same areas of main body  32  and end device  34 . Then, end device  34  can be attached and thus adhered to main body  32 . The primer used can be a standard PVC/ABS primer to clean main body  32  and end device  34 ; for example, the primer can be Weld-On® P-68 Primer by IPS Corp., the primer softening and preparing a polyvinyl chloride (PVC) fitting surface, for example. The adhesive used can be a standard all-purpose clear PVC cement to welt main body  32  and end device  34  together (the adhesive can also be described as a standard PVC rubber cement); for example, the adhesive can be a heavy duty clear PVC cement by Oatey. The adhering action provided by this adhesive can provide a chemical weld such that the respective parts of main body  32  and end device  34  heat up and melt the two plastic pieces together permanently (i.e., main body  32  and end device  34  being made of polyvinyl chloride in one embodiment of the invention). Alternatively or in addition thereto, first and second attachment features  66  can form an interference fit with first and second attachment channels. The installer of drain assembly  26  can apply the primer and adhesive to attachment features  66 , to attachment channels  62 ,  64 , and to the entire respective longitudinal end  36 ,  38  (including the respective transverse edge  37  of longitudinal end  36 ,  38 , transverse edge  37  formed by first wall  40 , drainage channel  42 , second wall  44 , and third wall  46 ) during installation and then attach the respective end device  34  to the respective longitudinal end  36 ,  38 . 
     Each of first and second attachment features  66  are generally U-shaped and are matingly received in first and second attachment channels  62 ,  64 , the U-shape being upside down like first and second attachment channels  62 ,  64 . Each of first and second attachment features  66  includes two substantially vertical fourth walls  76  and a substantially horizontal fifth wall  78  attached to fourth walls  76  therebetween. Fourth walls  76  are positioned adjacent respectively second wall  44 , third wall  46 , and drainage channel  42 , fifth wall  78  being positioned adjacent first wall  40 . More specifically, when end device  34  is placed on first longitudinal end  36  in first and second attachment channels  62 ,  64 , one fourth wall  76  of first attachment feature  66  is adjacent the inwardly facing surface of second wall  44 , the other fourth wall  76  of first attachment feature  66  is adjacent the outwardly facing surface of one vertical wall  58  of drainage channel  42 , fifth wall  78  of first attachment feature  66  is adjacent the bottom surface of first wall  40 , one fourth wall  76  of second attachment feature  66  is adjacent the inwardly facing surface of third wall  46 , the other fourth wall  76  of second attachment feature  66  is adjacent the outwardly facing surface of one vertical wall  58  of drainage channel  42 , and fifth wall  78  of second attachment feature  66  is adjacent the bottom surface of first wall  40 . The adhesive between these walls of the attachment features  66  and these walls of main body  32  secures these walls together. A similar attachment (albeit turned around in orientation) of first and second attachment features  66  can occur on second longitudinal end  38 . 
     As shown in  FIGS. 3-4  and  7 , floor endcap  34 A includes a substantially vertical sixth wall  80  and a substantially horizontal seventh wall  82  attached to sixth wall  80 . First and second attachment features  66  project from sixth wall  80 . Sixth wall  80  is positioned adjacent first longitudinal end  36  (or, optionally, second longitudinal end  38 ). Seventh wall  82  can be attached to subfloor  24 , as indicated in  FIG. 7  (alternatively or in addition thereto, seventh wall  82  can be supported by underlayment  25 , such as concrete). Seventh wall  82  can be positioned flush and level with first floor  40  of main body  32 . Seventh wall  82  includes a plurality of fastener holes  54  for receiving fasteners (such as screws, which are not shown) to connect floor endcap  34 A to subfloor  24 . Floor endcap  34 A provides a seal between main body  32  (or at least an extension of main body  32 ) and the associated surrounding structure (i.e., the subfloor, the shower base floor (such as the underlayment  25 )). Sixth and/or seventh walls  80 ,  82  can be formed thicker or thinner as desired; a thicker sixth and/or seventh wall  80 ,  82  can provide greater rigidity. Because drainage channel  42  proceeds all the way to transverse edge  37  of longitudinal ends  36 ,  38 , wall  60  of drainage channel  42  is always lower than the top surface of first wall  40  and is thus open extending longitudinally on longitudinal ends  36 ,  38 ; vertical sixth wall  80  of floor endcap  34 A closes this opening and thus encloses drainage channel  42  along its vertical boundaries and thus further prevents water from falling off the longitudinal ends  36 ,  38  of main body  32 . Main body  32  can thus also be cut advantageously transversely through drainage channel  42  along virtually any point along drainage channel  42 , sixth wall  84  then enclosing the longitudinal ends of drainage channel  42 . 
     As shown in  FIGS. 8 ,  9 - 11 , and  13 , wall endcap  34 B includes a substantially vertical eighth wall  84 . First and second attachment features  66  project from said eighth wall  84 . Eighth wall  84  is positioned adjacent first longitudinal end  36  (or, optionally, second longitudinal end  38 ). Eighth wall  84  can be attached to house framing structure (such as a stud) and/or to additional blocking (i.e., additional two inch×four inch wood) attached to the house framing structure (not shown) in a cutout  104  formed in backerboard  86  (such as drywall used on a shower wall to which shower wall tiles can be directly or indirectly affixed). Eighth wall  84  and first wall  40  abut one another perpendicularly. Wall endcap  34 B provides a seal between main body  32  (or at least an extension of main body  32 ) and the associated surrounding structure (i.e., the backerboard  86 ). Eighth wall  84  can be formed thicker or thinner than as shown in  FIG. 8 , depending upon the application. For instance, eighth wall  84  can be formed to be as thick as the thickness of backerboard  86  (eighth wall  84  is shown as being thinner than backboard  86  in  FIG. 8 ). Thus, the thickness of eighth wall  84  can coincide with the backerboard  86  of the environment. A thicker eighth wall  84  can provide greater rigidity and can facilitate installation. When wall endcaps  34 B, for instance, are used on the longitudinal ends  36 ,  38  of a drain assembly  26 , drain assembly  26  can run from wall-to-wall in the shower; as such, the shower floor need pitch in at most only two directions (pitching only towards the longitudinal sides of main body  32 ). Eighth wall  84  of wall endcap  34 B includes fastener holes  54  for receiving fasteners (not shown), such as screws, to attach wall endcap  34 B to the building studs and/or blocking that is added to the house framing during installation of drain assembly  26 . Vertical eighth wall  84  wall  80  of wall endcap  34 B closes the opening at the longitudinal ends  36 ,  38  of drainage channel  42  and thus encloses drainage channel  42  along its vertical boundaries and thus further prevents water from falling off the longitudinal ends  36 ,  38  of main body  32 . Main body  32  can thus also be cut advantageously transversely through drainage channel  42  along virtually any point along drainage channel  42 , eighth wall  84  then enclosing the longitudinal ends of drainage channel  42 . 
     As shown in  FIGS. 12 and 13 , linear junction member  34 C is configured for coupling, and does couple, one main body  32  in a substantially straight line with another main body  32  (as shown in  FIG. 13 ), both main bodies  32  being substantially similar to one another (as described above). By stating that both main bodies  32  are substantially similar to one another, this means that the main bodies  32  have the same design, but it is understood that one can be shorter than the other; this can occur, for example, during installation when one main body  32  needs to be shortened for the application by field cutting off a portion of that main body  32 . Field cutting refers to cutting of the main body  32  by an installer who is installing drain assembly  26  in, for example, a shower, as opposed to any cutting that may occur at the manufacturer&#39;s facility. Main body  32  can be field cut using a square cut miter box to ensure a smooth square cut. Linear junction member  34 C includes a substantially horizontal span  88  connecting first and second attachment features  66  together. Linear junction member  34 C spans a joint  90  formed by the two main bodies  32  which abut one another in an end-to-end manner. Span  88  underlaps drainage channel  42  of each of these main bodies  32 . First and second attachment features  66  of linear junction member  34 C can be adhered to first and second attachment channels  62 ,  64  of each of the two main bodies  32  with the adhesive therebetween; alternatively or in addition thereto, first and second attachment features  66  can form an interference fit with first and second attachment channels  62 ,  64  of each of the two main bodies  32 . Thus, drain assembly  26  can optionally be lengthened by coupling two main bodies  32  together in end-to-end fashion using linear junction member  34 C. In so coupling two main bodies  32  together, the adjacent drainage channels  42  of the two main bodies  32  are aligned with one another and slope downwardly running away from joint  90 ; as such, separate vertical drainage devices  48  of the respective two main bodies  32  can be used to remove the water from the shower. Linear junction member  34 C thus attaches to the respective undersides of the two main bodies  32  and further spans the two main bodies  32 . Linear junction member  34 C thus can be used to attach two five feet main bodies  32  together to form a linear drain assembly  26  which is ten feet long, this drain assembly  26  having a continuous drainage channel  42  the entire length of drain assembly (but for the holes formed by the respective drainage devices  48  in the two main bodies  32 ). Main body  32  can thus also be cut advantageously transversely through drainage channel  42  along virtually any point along drainage channel  42 . 
     As shown in  FIGS. 14-16 , corner member  34 D is configured for coupling, and does couple, one main body  32  substantially perpendicularly with another main body  32 , both main bodies  32  being substantially similar to one another (as described above). Corner member  34 D includes a substantially horizontal ninth wall  92 , two corner drainage channels  94  angled perpendicularly relative to one another and depending from said ninth horizontal wall  92 , a substantially vertical tenth wall  94  depending from said ninth wall  92 , and a substantially vertical eleventh wall  98  depending from said ninth wall  92  and angled perpendicularly relative to said tenth wall  96 . Ninth wall  92  is functionally equivalent to first wall  40 . Ninth wall  92  defines a plurality of fastener holes  54  so that fasteners, such as screws (not shown), can fasten corner member  34 D to subfloor  24 . Ninth wall  92  also includes adhesive channels  56  on both sides of corner drainage channels  94  and thus angled perpendicularly relative to one another. Corner drainage channels  94  are functionally equivalent to drainage channel  42  of main body  32 . Corner drainage channels  94  angle downwardly running from the place where corner drainage channels  94  connect with one another. Thus, at least a portion of corner drainage channels  94  are positioned below ninth wall  92 . Because corner drainage channels  94  are angled this way, water in one corner drainage channel  94  runs away from water in the other corner drainage channel  94  (at a right angle). Corner drainage channels  94  are aligned respectively with drainage channels  42  of the two main bodies  32  which are coupled together by way of corner member  34 D; stated another way, corner drainage channels  94  merge with and form corresponding slopes with drainage channels  42  of the two main bodies  32  which are coupled together using corner member  34 D such that water flows, under the force of gravity, away from corner member  34 D to the main bodies  32 . Drain assembly  26  thus provides that water flows from corner member  34 D to respective vertical drainage devices  48  of the two main bodies  32 . Thus, corner member  34 D provides for drainage of water from a shower floor, in a shower application for example. First and second attachment features  66  project from tenth wall  96 . Eleventh wall  98  includes third and fourth attachment features  66  which project therefrom and which are substantially identical to first and second attachment features  66 . First, second, third, and fourth attachment features  66  are received by and connected respectively to first and second attachment channels  62 ,  64  of the two main bodies  32  on the underside of the main bodies  32 . Tenth and eleventh walls  96 ,  98  abut against second and third walls  44 ,  46  of the two main bodies  32 . First, second, third, and fourth attachment features  66  can thus be adhered to first and second attachment channels  62 ,  64  of the two main bodies  32  using the adhesive described above; alternatively or in addition thereto, first, second, third, and fourth attachment features  66  can form an interference fit with first and second attachment channels  62 ,  64  of the two main bodies  32 . Thus, two main bodies  32  can be coupled together at a right angle to one another using corner member  34 D. Corner member  34 D can be placed anywhere where drain assembly  26  needs to be extended at a right angle (i.e., in the corner of a shower). Corner member  34 D thus provides for a smooth transition between drainage channel  42  and corner drainage channel  94  or provides a vertical wall  96 ,  98  for enclosing the respective drainage channel  42 . Main body  32  can thus also be cut advantageously transversely through drainage channel  42  along virtually any point along drainage channel  42 . 
     First and second attachment features  66  of any of the end devices  34  (as well as third and fourth attachment features  66  of corner member  34 D) are selectively positionable between a first position  100  and a second position  102  along respectively first and second attachment channels  62 ,  64  of a respective main body  32 . First position  100  corresponds to end device  34  being attached to first longitudinal end  36  when that portion of main body  32  extending between vertical drain device  48  and the longitudinal end  36 ,  38  to which end device  34  is to be attached has not yet been field cut. In other words, first longitudinal end  36  extends the same distance from vertical drainage device  48  as main body  32  was provided by the manufacturer of main body  32 . Second position  102  corresponds to end device  34  being attached to first longitudinal end  36  when that portion of main body  32  extending between vertical drain device  48  and the longitudinal end  36 ,  38  to which end device is to be attached has been field cut. In other words, because of the field cutting of main body  32 , the distance between vertical drainage device  48  and first longitudinal end  36  has shortened and, thus, first longitudinal end  36  has effectively moved from its original position (that is, first position  100 ) as provided by the manufacturer to an alternate position (that is, second position  102 ) as determined by the installer. Thus, first and second attachment features  66  (or third and fourth attachment features of corner member  34 D) occupy second position  102  when first length  68  is selectively shortened by way of field cutting and thereby when first longitudinal end  36  is moved from first position  100  to second position  102 , second position  102  being closer to vertical drainage device  48  than first position  100 . Because first and second attachment channels  62 ,  64  run all the way from first longitudinal end  36  (as provided by the manufacturer) to vertical drainage device  48 , second position  102  can be located anywhere between the first position  102  and adjacent vertical drainage device  48  (allowing enough space for first and second attachment features  66  to fully join with first and second attachment channels  62 ,  64 ), except where a support wall  50  may interfere with connecting first and second attachment features  66  with first and second attachment channels  62 ,  64 ; in such an instance, the cut along main body  32  has to be made in such a place that first and second attachment features  66  can fully join with first and second attachment channels  62 ,  64 , without interference by a support wall  50 . It is understood that such attachment of end devices  34  and shortening of main body  32  can occur also on second longitudinal end  38  of main body  32 . It is further understood that, for example, a main body  32  can be shortened on one longitudinal end  36 ,  38  by field cutting and, on the other longitudinal end  36 ,  38 , attached to a linear junction member  34 C or a corner member  34 D so as to lengthen the drain assembly  26  in that direction by coupling the main body  32  to another main body  32 , which itself can be shortened and/or again coupled to another main body  32 , as the application dictates. 
     In use, as the installation requires, end device  34 A,  34 B,  34 C,  34 D is selectively attached to main body  32  before main body  32  is placed in position relative to subfloor  24 . Subfloor  24  can be plywood or concrete. End device  34  is glued to main body  32  using attachment features  66  and attachment channels  62 ,  64  in that attachment features  66  are positioned in corresponding attachment channels  62 ,  64  on the longitudinal end  36 ,  38  of main body  32 . If end device  34 C or  34 D is used, the second main body  32  can be attached to the first main body  32  before or after the first main body  32  is in position relative to subfloor  24  as the application permits. In placing main bodies  32  in position on subfloor  24 , vertical drainage device  48  is attached to the house drain pipe  27  and glued thereto. If drain screen  74  is used, drain screen  74  is securely sandwiched between shoulder  72  and house drain pipe  27 . Fasteners (not shown), such as screws, can be placed in any fastening holes  54  of main bodies  32  and/or end devices  34  and fastened to subfloor  24 . Shims can be used to level drain assembly  26 . An adhesive can be applied to adhesive channels  56 . End devices  34  can be secured to surrounding environmental structure as described above. Waterproofing membranes  28  can then be glued to the top surface of main bodies  32  using the glue the installer places in adhesive channels  56  (optionally, waterproofing membrane  28  can be a coating which is painted on). Underlayment  25  can be used to form the appropriate slope towards drain assembly  26 ; underlayment  25  can be concrete or another material. Ceramic tile  30  (such as relatively large ceramic tile  30 ) can be secured to the waterproofing membrane. While  FIG. 1  shows the end of tile  30  nearest drainage channel being curved, it is understood that this portion of tile  30  can be formed by one or more angled straight edges (for instance, a vertical straight edge proceeding from the bottom edge of tile  30  being connected to an angled straight edge which connects to the top edge of tile  30 ). End devices  34  can be applied to any longitudinal end  36 ,  38  in any combination of end devices  34 , as the installation requires. If the installation requires shortening one or more main bodies  32 , the installer can field cut one or more longitudinal ends  36 ,  38  of a respective main body  32  in a direction perpendicular to longitudinal direction  52  and in a location such that support walls  50  or vertical drainage device  48  do not inhibit securely attaching attachment features  66  to attachment channels  62 ,  64 . Main body  32 , having longitudinally extending attachment channels  62 ,  64 , can be field cut along virtually the entirety of first length  68  and/or second length  70  of main body  32 . A square cut miter saw can be used to field cut main body  32 . 
     One specific installation process can be described relative to installing drain assembly  26  into a concrete subfloor  24 , drain assembly  26  including one main body  32  and wall endcaps  34 B attached to each longitudinal end  36 ,  38 . Concrete subfloor  24  can be prepared (broken so as to form appropriate holes therein) to receive drain assembly relative to house drain pipe  27 . The PVC riser formed by house drain pipe  27  can be cut flush with the rough floor covering. The location for drain assembly  26  can be measured off of each wall/curb relative to house drain pipe  27 . One or more respective longitudinal ends  36 ,  38  of main body  32  can be field cut by the installer so that main body  32  is cut to size (using a square cut miter box) according to the measurements taken; main body  32  should be cut a distance (possibly one-half inch, depending upon the thickness of eighth wall  84 ) less than the original measurement, this distance accounting for the thickness of the backerboard  86 . The gap between the respective longitudinal end  36 ,  38  and the house framing structure allows for the installation of wall endcap  34 B. Wall endcap  34 B can be attached to the respective longitudinal end  36 ,  38  (without yet applying any primer or glue) to verify a tight fit of wall endcap  34 B to longitudinal end  36 ,  38 . Primer can be applied liberally to appropriate places of wall endcap  34 B and main body  32 , as described above. Then, adhesive can be applied liberally to appropriate places of wall endcap  34 B and main body  32 , as described above. Upon adhering wall endcaps  34 B to main body  32 , drain assembly  26  is ready to be installed. Upon placing drain assembly  26  on drain pipe  27 , drain assembly  26  can be leveled using shims; drain assembly  26  must be installed level for proper performance. Drain assembly  26  can be installed by gluing drain assembly  26  (specifically, drainage device  48 ) directly to drain pipe  27  and, optionally, screwing down to the floor main body  32  using fastener holes  54  at a pre-drilled location (such fasteners are not always needed, such as if concrete is used under longitudinal sides of first wall  40  and the concrete levels drain assembly  26 ). The shower wall backerboard  86  can now be prepared. The backerboard  86  (which can also be considered to be drywall) is to be placed over the wall studs. Prior to doing so, the backerboard  86  needs to be cut so as to form a cutout  104  at the base of the backerboard  86 , this cutout  104  shaped to receive eighth wall  84  of wall endcap  34 B with little space between backerboard  86  and eighth wall  84 ; thus, the backerboard  86  of choice can be cut so as to leave a cutout  104  (which can also be referred to as a notch) the size of wall endcap  34 B. Wall endcap  34  can be secured to additional blocking (additional 2 inch×4 inch pieces attached to house framing structure) using fasteners through fastener holes  54  (formed in eighth wall  84  by the manufacturer of wall endcap  34 B) of wall endcap  34 B, but the use of such fasteners is not always absolutely necessary. The backerboard  86  can now be installed per the manufacturer&#39;s recommendation. The cutout  104  formed in the backerboard  86 , in conjunction with the size of eighth wall  84  (which can be formed wider than a transverse extent of main body  32 ), keeps water from coming in contact with the backerboard  86  and wicking up into the backerboard  86 ; thus, wall endcap  34  isolates backerboard  86  so that water from drainage channel  42  does not come into contact with the backerboard  86 . It is noted that eighth wall  84  forms the vertical enclosing endwall for drainage channel  42 ; in other words, without eighth wall  84  being attached to longitudinal end  36 ,  38 , then drainage channel  42  would have no way of stopping water from falling off the longitudinal end  36 ,  38  of main body in drainage channel  42  other than the sloped walls  60  of drainage channel  42  (unless additional efforts were taken to provide some sort of vertical wall for drainage channel  42 ). The shower base mud (concrete material) of choice can be used to create a flat sloped floor with at least two percent grade to allow for water to flow to main body  32 . This mud can be leveled off and allowed to cure so as to form the underlayment  25 . One-inch painters tape can be used to cover and thereby protect drainage channel  42  and drainage opening  48  while applying this mud and also while installing the waterproofing system. Once this sloped floor is dried, the sloped floor is ready for waterproofing. Fiberglass mesh tape can be used to cover over the top of eighth wall  84  (the portion sitting within the cutout  104  of the backerboard  86 ) and the transition to the backerboard  86 . Spackling can be used to fill in joints between eighth wall  84  and backerboard  86  (eighth wall  84  can be formed as thick as the thickness of backerboard  86  so that eighth wall  84  in a sense forms a part of the backerboard  86 ); alternatively or in addition to the spackling, the waterproofing material used to coat the shower floor can also be used to cover over the fiberglass mesh. This way of installing wall endcap  34 B can be done on both longitudinal ends  36 ,  38  (the other end can be another shower wall or a curb). Further, the shower base and the transition between the drain assembly  26  and the shower base can be waterproofed using the waterproofing system of choice. Such a waterproofing system can be a coating  28  which is painted onto the dried underlayment  25  (the concrete that was poured); such a coating  28  can be Laticrete Hydro Ban. When the waterproofing coating  28  dries, the shower base is ready to be tiled; the painters tape is removed to expose drainage channel  42 . The tile  30  of choice is set directly over drain assembly  26  leaving only the width of drainage channel  42  exposed. The shower base can be completed using, for example (not by way of limitation), a 13 inch×20 inch tile in a running bond pattern. Thus, waterproofing membrane  28  (i.e., in the form of coating  28 ) and tiles  30  are laid across the longitudinal extent of main body  32  except for drainage channel  42 . 
     According to an alternative embodiment of the present invention, waterproofing membranes  28  (formed as a fabric or mesh) can be formed integral with main body  32 . As such, one waterproofing membrane  28  can be attached by the manufacturer to the top surface of first wall  40  of main body  32  respectively along each longitudinal side of main body  32 . This factory attachment can be accomplished using an adhesive to glue each waterproofing membrane  28  to the top surface of first wall  40  of main body  32 . Alternatively, this factory attachment can be accomplished by embedding and thereby overmolding each waterproofing membrane  28  in first wall  40  of main body  32 . Even with integrating waterproofing membranes  28 , main body  32  and thus also waterproofing membranes  28  can be field cut to size. 
     The present invention further provides a method of using a drain assembly  26 . The method includes: providing a drain assembly  26  including a main body  32  which includes a substantially horizontal first wall  40  extending in a longitudinal direction  52  of main body  32 , a drainage channel  42  depending from first wall  40  and extending in longitudinal direction  52 , a substantially vertical second wall  44  depending from first wall  40  and extending in longitudinal direction  52 , and a first longitudinal end  36 , first wall  40 , drainage channel  42 , and second wall  44  together forming a first attachment channel  62 ; receiving, by first attachment channel  62 , a first attachment feature  66  of an end device  34  at first longitudinal end  36 ; and attaching first attachment channel  62  to first attachment feature  66  at first longitudinal end  36 . Main body  32  includes a substantially vertical third wall  46  depending from first wall  40 , extending in longitudinal direction  52 , and being spaced apart from second wall  44  and drainage channel  42 , drainage channel  42  being between second and third walls  44 ,  46 , first wall  40 , drainage channel  42 , and third wall  46  together forming a second attachment channel  64 , the method further including receiving, by second attachment channel  64 , a second attachment feature  66  of end device  34  at first longitudinal end  36 , and attaching second attachment channel  64  to second attachment feature  66  at first longitudinal end  36 . Main body  32  includes a second longitudinal end  38  opposing first longitudinal end  36 , and a substantially vertical drainage device  48  positioned between first and second longitudinal ends  36 ,  38  and intercepting drainage channel  48 , first and second attachment channels  62 ,  64  extending at least substantially a first length  68  running from drainage device  42  to first longitudinal end  36  and a second length  70  running opposingly from drainage device  42  to second longitudinal end  38 , the method further including attaching selectively end device  34  to one of first longitudinal end  36  and second longitudinal end  38  by way of first and second attachment features  66  and first and second attachment channels  62 ,  64 . The method can further include positioning selectively first and second attachment features  66  of end device  34  between a first position  100  and a second position  102  along respectively first and second attachment channels  62 ,  64 , first and second attachment features  66  occupying second position  102  when first length  68  is selectively shortened by way of field cutting and thereby when first longitudinal end  36  is moved from first position  100  to second position  102  which is closer to drainage device  48  than first position  100 . First and second attachment features  66  are connected respectively to first and second attachment channels  62 ,  64  using an adhesive, each of first and second attachment features  66  including two substantially vertical fourth walls  76  and a substantially horizontal fifth wall  78  attached to fourth walls  76  therebetween, fourth walls  76  being positioned adjacent respectively second wall  44 , third wall  46 , and drainage channel  42 , fifth wall  78  being positioned adjacent first wall  40 . End device  34  is selectively a floor endcap  34 A, a wall endcap  34 B, a linear junction member  34 C coupling main body  32  in a substantially straight line with another main body  32  which is substantially similar to one another, or a corner member  34 D coupling main body  32  substantially perpendicularly with the other main body  32 , first and second attachment features  66  of each of floor endcap  34 A, wall endcap  34 B, linear junction member  34 C, and corner member  34 D being substantially identical, and thereby being selectively attached to main body  32 . When end device  34  is floor endcap  34 A, floor endcap  34 A includes a substantially vertical sixth wall  80  and a substantially horizontal seventh wall  82  attached to sixth wall  80 , first and second attachment features  66  projecting from sixth wall  80 , sixth wall  80  being positioned adjacent first longitudinal end  36 . When end device  34  is wall endcap  34 B, wall endcap  34 B includes a substantially vertical eighth wall  84 , first and second attachment features  66  projecting from eighth wall  84 , eighth wall  84  being positioned adjacent first longitudinal end  36 . When end device  34  is linear junction member  34 C, linear junction member  34 C includes a substantially horizontal span  88  connecting first and second attachment features  66  together, linear junction member  34 C spanning a joint  90  formed by main body  32  and the other main body  32  abutting one another in an end-to-end manner, span  88  underlapping drainage channel  42  of each of main body  32  and the other main body  32 . When end device  34  is corner member  34 D, corner member  34 D includes a substantially horizontal ninth wall  92 , two corner drainage channels  94  angled perpendicularly relative to one another and depending from ninth wall  92 , a substantially vertical tenth wall  96  depending from ninth wall  92 , and a substantially vertical eleventh wall  98  depending from ninth wall  92  and angled perpendicularly relative to tenth wall  96 , first and second attachment features  66  projecting from tenth wall  96 , eleventh wall  98  including third and fourth attachment features  66  projecting therefrom and which are substantially identical to first and second attachment features  66 , corner drainage channels  94  being aligned respectively with drainage channel  42  of main body  32  and the other main body  32 , first, second, third, and fourth attachment features  66  being received by and attached respectively to first and second attachment channels  62 ,  64  of main body  32  and the other main body  32 . 
     While this invention has been described with respect to at least one embodiment, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.