Class N: Miscellaneous metalwork

Mild steel Stairways and landings – – – – t 5874.44 Walkways and platforms – – – – t 5901.21 Ladders

cat ladder; 64×13mm bar strings; 19mm rungs at 250mm centres; 450mm wide with safety hoops – – – – m 104.80

Miscellaneous framing angle section; 200×200 × 16mm (equal) – – – – m 292.33 angle section; 150×150 × 10mm (equal) – – – – m 135.12 angle section; 100×100 × 12mm (equal) – – – – m 242.69 angle section; 200×150 × 15mm (unequal) – – – – m 193.04 angle section; 150×75 × 10mm (unequal) – – – – m 102.26 universal beams; 914×419mm – – – – m 2261.42 universal beams; 533×210mm – – – – m 772.19 universal joists; 127×76mm – – – – m 82.74 channel section; 381×102mm – – – – m 353.00 channel section; 254×76mm – – – – m 182.02 channel section; 152×76mm – – – – m 115.83 tubular section; 100×100 × 10mm – – – – m 165.47 tubular section; 200×200 × 15mm – – – – m 551.57 tubular section; 76.1 × 5.0mm – – – – m 57.36 tubular section; 139.7 × 6.3mm – – – – m 159.96

Mild steel; galvanized Handrails

76mm diameter tubular handrail, 48mm diameter standards at 750mm centres, 48mm diameter middle rail, 1070mm high overall – – – – m 126.86

Plate flooring 8mm (on plain) Durbar pattern floor plates, maximum weight each panel 50 kg – – – – m2 332.01

Mild steel; internally and externally acid dipped, rinse and hot dip galvanized, epoxy internal paint Uncovered tanks

1600 litre capacity open top water tank – – – – nr 1075.56 18180 litre capacity open top water tank – – – – nr 10755.52 Covered tanks

1600 litre capacity open top water tank with loose fitting lid; – – – – nr 1601.14

18180 litre capacity open top water tank with loose fitting lid – – – – nr 16600.50

Corrugated steel plates to BS 1449 Pt 1, Gr H4, sealed and bolted; BS729 hot dip galvanized, epoxy internal and external paint Uncovered tanks

713m3 capacity bolted cylindrical open top tank – – – – nr 42470.50

hours £ £ £ rate £

PROPRIETARY WORK

Galvanized steel troughed sheeting; 0.70mm metal thickness, 75mm deep corrugations; colour coating each side; fixing with plastic capped self-tapping screws to steel purlins or rails Cladding

upper surfaces inclined at an angle ne 30° to the horizontal 0.15 8.20 0.24 45.22 m2 53.66 Extra for :

galvanized steel inner lining sheet, 0.40mm thick, Plastisol colour coating 0.06 3.28 0.19 22.06 m2 25.53 galvanized steel inner lining sheet, 0.40mm thick, Plastisol colour coating; insulation, 80mm thick 0.08 4.37 0.13 77.22 m2 81.72

surfaces inclined at an angle exceeding 60° to the horizontal 0.16 8.75 0.51 38.61 m2 47.87 Extra for :

galvanized steel inner lining sheet, 0.40mm thick, Plastisol colour coating 0.11 6.01 0.35 22.06 m2 28.42 galvanized steel inner lining sheet, 0.40mm thick, Plastisol colour coating; insulation, 80mm thick 0.13 7.11 0.41 77.22 m2 84.74

Galvanized steel flashings; 0.90mm metal thickness; bent to profile; fixing with plastic capped self-tapping screws to steel purlins or rails; mastic sealant Flashings to cladding

250mm girth 0.12 6.56 0.38 24.82 m 31.76 500mm girth 0.18 9.84 0.57 36.40 m 46.81 750mm girth 0.22 12.03 0.70 40.26 m 52.99

Aluminium profiled sheeting; 0.90mm metal thickness, 75mm deep corrugations; colour coating each side; fixing with plastic capped self-tapping screws to steel purlins or rails Cladding

upper surfaces inclined at an angle exceeding 60° to the horizontal 0.20 10.94 0.63 44.12 m2 55.69 Extra for :

aluminium inner lining sheet, 0.70mm thick, Plastisol colour coating 0.13 7.11 0.46 27.58 m2 35.15 aluminium inner lining sheet, 0.70mm thick, Plastisol colour coating; insulation, 80mm thick 0.15 8.20 0.47 82.74 m2 91.41

hours £ £ £ rate £

PROPRIETARY WORK – cont

Aluminium profiled sheeting; 1.00mm metal thickness, 75mm deep corrugations; colour coating each side; fixing with plastic capped self-tapping screws to steel purlins or rails Cladding

upper surfaces inclined at an angle ne 30° to the horizontal 0.17 9.30 0.27 55.16 m2 64.73 Extra for :

aluminium inner lining sheet, 0.70mm thick, Plastisol colour coating 0.09 4.92 0.14 27.58 m2 32.64 aluminium inner lining sheet, 0.70mm thick, Plastisol colour coating; insulation, 80mm thick 0.11 6.01 0.17 82.74 m2 88.92

Aluminium flashings; 0.90mm metal thickness; bent to profile; fixing with plastic capped self-tapping screws to steel purlins or rails; mastic sealant Flashings to cladding

250mm girth 0.12 6.56 0.38 24.93 m 31.87 500mm girth 0.18 9.84 0.57 36.40 m 46.81 750mm girth 0.22 12.03 0.70 40.81 m 53.54

Flooring; Eurogrid; galvanized mild steel Open grid flooring

type 41/100; 3 × 25mm bearer bar; 6mm diameter transverse bar – – – – m2 49.97 type 41/100; 5 × 25mm bearer bar; 6mm diameter transverse bar – – – – m2 63.21 type 41/100; 3 × 30mm bearer bar; 6mm diameter transverse bar – – – – m2 57.14

Duct covers; Stelduct; galvanized mild steel Duct covers; pedestrian duty

225mm clear opening – – – – m 99.28 450mm clear opening – – – – m 107.01 750mm clear opening – – – – m 126.86

Duct covers; medium duty 225mm clear opening – – – – m 496.39 450mm clear opening – – – – m 535.03 750mm clear opening – – – – m 507.44

Duct covers; heavy duty 225mm clear opening – – – – m 198.56 450mm clear opening – – – – m 267.51 750mm clear opening – – – – m 317.15

hours £ £ £ rate £

Bridge bearings Supply plain rubber bearings ( 3m and 5m lengths)

150× 20mm 0.35 17.11 – 41.50 m 58.61 150× 25mm 0.35 17.11 – 49.81 m 66.92

Supply and place in position laminated elastomeric rubber bearing

250× 150×19mm 0.25 12.22 – 30.84 nr 43.06 300× 200×19mm 0.25 12.22 – 33.81 nr 46.03 300× 200×30mm 0.27 13.20 – 42.69 nr 55.89 300× 200×41mm 0.27 13.20 – 64.03 nr 77.23 300× 250×41mm 0.30 14.67 – 80.64 nr 95.31 300× 250×63mm 0.30 14.67 – 112.66 nr 127.33 400× 250×19mm 0.32 15.65 – 59.29 nr 74.94 400× 250×52mm 0.32 15.65 – 130.45 nr 146.10 400× 300×19mm 0.32 15.65 – 68.77 nr 84.42 600× 450×24mm 0.35 17.11 – 142.30 nr 159.41

Adhesive fixings to laminated elastomeric rubber bearings

2mm thick epoxy adhesive 1.00 48.90 – 51.81 m2 100.71 15mm thick epoxy mortar 1.50 73.35 – 311.22 m2 384.57 15mm thick epoxy pourable grout 2.00 97.80 – 310.33 m2 408.13

Supply and install mechanical guides for laminated elastomeric rubber bearings

500kN SLS design load; FP50 fixed pin Type 1 2.00 97.80 – 929.21 nr 1027.01 500kN SLS design load; FP50 fixed pin Type 2 2.00 97.80 – 958.18 nr 1055.98 750kN SLS design load; FP75 fixed pin Type 1 2.10 102.69 – 1077.39 nr 1180.08 750kN SLS design load; FP75 fixed pin Type 2 2.10 102.69 – 1224.48 nr 1327.17 300kN SLS design load; UG300 Uniguide Type 1 2.00 97.80 – 1114.17 nr 1211.97 300kN SLS design load; UG300 Uniguide Type 2 2.00 97.80 – 1279.63 nr 1377.43

Supply and install fixed pot bearings 355× 355; PF200 2.00 97.80 – 995.66 nr 1093.46 425× 425; PF300 2.10 102.69 – 1187.22 nr 1289.91

Supply and install free sliding pot bearings 445× 345; PS200 2.10 102.69 – 1338.69 nr 1441.38 520× 415; PS300 2.20 107.58 – 1707.33 nr 1814.91

Supply and install guided sliding pot bearings 455× 375; PG200 2.20 107.58 – 1779.32 nr 1886.90 545× 435; PG300 2.30 112.47 – 2118.02 nr 2230.49

Testing; laminated elastomeric bearings compression test – – – 61.77 nr 61.77 shear test – – – 82.74 nr 82.74 bond test (Exclusive of cost of bearings as this is a destructive test) – – – 314.39 nr 314.39