3828GOVERNMENT GAZETTE, WA 29 October 2019

3828 GOVERNMENT GAZETTE, WA 29 October 2019 FIRST SCHEDULE SPECIFICATIONS FOR A SUFFICIENT FENCE [clause 2.1] Each of the following is a “sufficient fence” on the specified lot type: A. RESIDENTIAL LOT (1) Timber fence (a) corner posts to be 125mm x 125mm x 2,400mm and intermediate posts to be 125mm x 75mm x 2,400mm spaced at 2,400mm centres; (b) corner posts to be strutted two ways with 100mm x 50mm x 450mm sole plates and 75mm x 50mm struts; (c) intermediate posts to be doubled yankee strutted with 150mm x 25mm x 450mm struts; (d) all posts to have tops with a 60mm weather cut and to be sunk at least 600mm into the ground; (e) rails to be 75mm x 50mm with each rail spanning 2 bays of fencing double railed or bolted to each post with joints staggered; (f) the fence to be covered with 75mm x 20mm sawn pickets, 1,800mm in height placed 75mm apart and affixed securely to each rail; (g) the height of the fence to be 1,800mm except with respect to the front set back area for which there is no minimum height but which is subject to clause 2.1(2). (2) Corrugated fence A fence constructed of corrugated fibre reinforced pressed cement or steel sheeting constructed to manufacturer’s specifications or which satisfies the following specifications— (a) a minimum in-ground length of 25 per cent of the total length of the sheet, but in any case with a minimum in-ground depth of 600mm; (b) the total height and depth of the fence to consist of a single continuous fibre reinforced cement or steel sheet; (c) the sheets to be lapped and capped with extruded “snap-fit” type capping in accordance with the manufacturer’s written instructions; (d) the height of the fence to be 1.8 metres except with respect to the front set back area for which there is no minimum height but which is subject to clause 2.1(2). (3) Brick, stone or concrete fence A fence constructed of brick, stone or concrete, which satisfies the following requirements and (a) footings of minimum 225mm x 150mm concrete 15MPA or 300mm x 175mm brick laid in cement mortar or 400mm x 400mm concrete 20MPA with minimum 1 layer 4-L11TM; (b) pier specifications— (i) continuous fence with engaged piers or infill panels between piers maximum 2.1 metres high with No. 2 R6 galvanised rod continuous in last mortar bed joint; (ii) engaged or attached piers 290mm x 290mm (for 90mm wide masonry unit) and 350mm x 350mm (for 110 wide masonry unit) with No. 1 Y12 galvanised reinforcing rod tied into footing and located centrally in pier; (iii) pier core to be filled with 15MPA concrete. Piers at maximum 2.1 metre centres. (c) expansion joints in accordance with the manufacturer’s written instructions; (d) a minimum height of 1.8 metres up to 2.1 metres (including screening), except within the street setback area which is subject to requirements outlined in clause 3.1; and (e) certified by a Structural Engineer as being appropriate for the particular site and wind terrain category. (4) Composite fence A composite fence which satisfies the following specifications for the brick construction— (1) (a) brick piers of minimum 345mm x 345mm at 1,800mm centres bonded to a minimum height base wall of 514mm; (b) each pier shall be reinforced with one R10 galvanised starting rod 1,500mm high with a 250mm horizontal leg bedded into a 500mm x 200mm concrete footing and set 65mm above the base of the footing. The top of the footing shall be 1 course (85mm) below ground level; (c) the minimum ultimate strength of brickwork shall be 20MPA. Mortar shall be a mix of 1 part cement, 1 part lime and 6 parts sand; (d) the ground under the footings is to be compacted to 6 blows per 300mm and checked with a standard falling weight penetrometer; (e) control joints in brickwork shall be provided with double piers at a maximum of 6-metre centres; or (2) (a) brick piers of a minimum 345mm x 345mm x 2,700mm centres bonded to the base wall; and (b) each pier shall be reinforced with two R10 galvanised starting rods as previously specified.