Decking System

Abstract

A decking system includes an extruded metal ledger board for mounting onto a supporting surface of a building structure and extruded metal joists which can be cut to length and joined to the ledger board using mounting clips that can be secured to the joists. A beam supporting the joists thereon and fascia trim members surrounding the perimeter of the decking system can also be used which are formed of extruded structural members arranged to be mated to the joists. A stair assembly formed of extruded structural members can also be mated together to form stairs connected to the decking system. Post supporting elements can also be coupled to the joists for supporting railing posts about a perimeter of the decking system.

1 . A decking system for use with a plurality of deck boards, the decking
 system comprising:
 a plurality of joists arranged to be supported to extend parallel to and spaced apart from one another between opposing first and second ends of the decking system; the joists being arranged to received the deck boards thereon such that each deck board extending transversely across two or more of the joists; 
 each joist comprising an extruded structural member having a respective cross-sectional profile which is continuous across a full length of the structural member between opposing ends of the joist. 
   
     
     
         2 . The system according to  claim 1  further comprising:
 a ledger board connected across the joists at the first end of the decking system; and 
 the ledger board including a main body portion which is arranged to be fastened against an upright supporting surface, a ledge portion protruding from the main body portion upon which the joists are supported, and a retainer flange supported on the main body portion above the ledge portion; and 
 a joist mounting clip including a fastener flange fastened to one of the joists and a hook flange hooked relative to the retainer flange so as to resist longitudinal displacement of the joist away from the ledger board. 
 
     
     
         3 . The system according to  claim 2  further comprising a fastener flange protruding from the ledge portion below the joists and receiving fasteners therethrough securing the joists to the fastener flange. 
     
     
         4 . The system according to  claim 2  wherein the hook flange of the joist mounting clip extends upwardly above an upper surface of the joist. 
     
     
         5 . The system according to  claim 2  wherein each joist includes a mounting channel extending longitudinally along a top of the joist, the mounting flange of the joist mounting clip being recessed into the mounting channel and being fastened to the joist within the mounting channel of the joist. 
     
     
         6 . The system according to  claim 1  further comprising:
 a ledger board connected across the joists at the first end of the decking system so as to be arranged for connection to a building having flooring joist members; 
 a first bracket member fastened to one of joists in proximity to the ledger board; 
 a second bracket member arranged to be fastened to one of the flooring joist members internally within the building; and 
 a connecting rod arranged to be connected under tension between the first bracket and the second bracket member so as to be arranged to secure the first end of the decking system against the building. 
 
     
     
         7 . The system according to  claim 1  including a ledger board connected across the joists at the first end of the decking system, the ledger board including:
 a main body portion which is arranged to be fastened against an upright supporting surface of a building; 
 a ledge portion protruding from the main body portion upon which the joists are supported; and 
 a flashing member at a top end of the main body portion extending upwardly and outwardly across a thickness of the main body portion from an inner side of the main body portion against which the joists are abutted to an outer side of the main body portion arranged to be abutted against the building. 
 
     
     
         8 . The system according to  claim 1 , further comprising:
 a fascia member connected across the joists at one end of the decking system, the fascia member including an upper portion engaged upon a top of the joists, a retainer flange supported on the upper portion, and a base flange secured to a bottom of the joists;   a plurality of fascia mounting clips, each fascia mounting clip including a fastener flange fastened to one of the joists and a hook flange hooked relative to the retainer flange of the fascia member so as to resist displacement of the fascia member away from the joists longitudinally of the joists.   
     
     
         9 . The system according to  claim 8  wherein the joists include an outermost
 joist extending along one boundary of the decking system, the system further comprising:
 a side member identical in cross-sectional shape to the fascia member such that the side member includes an upper portion engaged upon a top of the outermost joist, a retainer flange supported on the portion, and a base flange secured to a bottom of the outermost joist; and 
 a plurality of side mounting clips identical in configuration to the joist mounting clips, each side mounting clip including a fastener flange fastened to the outermost joist and a hook flange hooked relative to the retainer flange of the side member so as to resist displacement of the side member away from the outermost joist longitudinally of the deck boards. 
 
 
     
     
         10 . The system according to  claim 1  further comprising:
 a fascia member connected to one or more joists at one end of the decking system; 
 the fascia member including an upper portion engaged upon a top of the joists, a wall portion extending downwardly from the upper portion across a height of the joists, and a trim slot formed at the bottom of the wall portion; 
 the trim slot being open downwardly and being stepped in profile to define a narrow upper portion arranged to receive a first thickness of a first skirt panel therein, and a wider lower portion arranged to receive a second thickness of a second skirt panel that is thicker than the first skirt panel. 
 
     
     
         11 . The system according to  claim 1  further comprising;
 a fascia member connected to one or more joists at one end of the decking system; 
 the fascia member including an upper portion engaged upon a top of the joists and a wall portion extending downwardly from the upper portion across a height of the joists; and 
 a flashing member including an inner flange joined to the upper portion of the fascia member to extend inwardly over the joists at a location spaced above the joists by a height corresponding to a thickness of the deck boards so as to receive edge portions of the deck boards between the joists and the flashing member on the fascia member. 
 
     
     
         12 . The system according to  claim 1  further comprising a beam extending across the joists to support the joists thereon, each joist comprising (i) a web portion, (ii) two top flanges at a top of the joist protruding laterally outwardly from opposing sides of the web portion, and (iii) two bottom flanges at a bottom of the joist protruding laterally outwardly from opposing sides of the web portion beyond the top flanges respectively, the bottom flanges being fastened to the beam. 
     
     
         13 . The system according to  claim 1  wherein each joist includes a mounting channel extending longitudinally along a top of the joist, and wherein each deck board is secured to the joists by board mounting clips, each board mounting
 clip including a mounting flange securable within the mounting channel of the joist and a retainer flange engaging one of the deck boards to secure the deck board to the joist. 
 
     
     
         14 . The system according to  claim 13  wherein the mounting channel of each joist includes two undercut portions along opposing sides respectively, each undercut portion forming a catch thereon, and wherein the mounting flange of each board mounting clip includes a pair of retainer surfaces thereon received below the undercut portions respectively so as to prevent upward displacement of the board mounting clip from the joist. 
     
     
         15 . The system according to  claim 14  wherein each board mounting clip, prior to fastening to the joist, is rotatable between a released position in which the retainer surfaces are in non-interference with at least one of the undercut portions and a mounted position in which the retainer surfaces are received below the undercut portions respectively. 
     
     
         16 . The system according to  claim 15  wherein each board mounting clip includes a socket formed therein arranged to mate non-rotatably with a screwdriver bit to rotate the board mounting clip between the released position and the mounted position. 
     
     
         17 . The system according to  claim 10  wherein the mounting flange of each board mounting clip includes a fastener slot formed therein receiving
 a fastener therethrough such that the fastener is received within the mounting channel of the joist and fastens the board mounting clip in fixed relation to the joist. 
 
     
     
         18 . The system according to  claim 1  wherein each joist comprises (i) a web portion, (ii) two top flanges at a top of the joist protruding laterally outwardly from opposing sides of the web portion, and (iii) two bottom flanges at a bottom of
 the joist protruding laterally outwardly from opposing sides of the web portion;
 each top flange forming a recessed channel which is recessed from a top of the joist so as to be located laterally between a top surface of the joist above the web portion and an outer edge portion of the top flange that terminates in a common plane with the top surface above the web portion; 
 the recessed channel having a depth arranged to fully receive a height of a head of a rivet therein. 
 
 
     
     
         19 . The system according to  claim 1  wherein each deck board comprises:
 a panel body including a top side and a bottom side spanning laterally between opposing first and second sides of the deck board along a length of the deck board; 
 a female interlocking element spanning in a longitudinal direction of the deck board along a first side of the panel body and a male interlocking element spanning in the longitudinal direction along a second side of the panel body opposite the first side whereby the female interlocking element is arranged to receive the male interlocking element of a first adjacent deck board of the deck boards that is adjacent the first side of the panel body and the male interlocking element is arranged to be received into the female interlocking element of a second adjacent deck board of the deck boards that is adjacent the second side of the panel body; 
 a first upright flange and a second upright flange extending upwardly from the top side of the panel body along the first and second sides of the panel body respectively so as to define a U-shaped recessed channel together with the top side of the panel body; an insert body received within the recessed channel on the panel body, the insert body being formed of a different material than the panel and defining a top surface of the deck board; a first flange among the first and second upright flanges terminating at a top end spaced below the top surface of the deck board; and 
 a second flange among the first and second upright flanges terminating at a top end substantially flush with the top surface of the deck board, the second flange protruding laterally over the first flange of a corresponding one of the adjacent deck boards. 
 
     
     
         20 . The system according to  claim 1  further comprising a beam extending across the joists and supporting the joists thereon, the beam comprising (i) a web portion, and (ii) two top flanges at a top of the beam protruding laterally outwardly from opposing sides of the web portion, the top flanges being fastened to the joists. 
     
     
         21 .- 42 . (canceled)