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Costs: landscape and exterior products

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Davis Langdon provides indicative costs for common items of work associated with landscaping and exterior products. The rates are for landscaping and external works associated with a building project, current in January 2005, and are representative of competitively tendered work in the outer London area

GROUND STABILISATION 2l Tensar erosion-control mat, including spreading topsoil 6-8 l Bank revetment of Grasscrete surfacing with drainage layer, topsoil and seed 36-46 l Precast hollow concrete blockwork, 1,800mm high, filled with concrete 46-56 l Revetment of mattress gabions packed with stone or concrete 55-75 l Honeycomb-structured HDPE polymer strips with interlocking joints laid to prepared terraces and backfilled to form raked wall for planting 80-120 PAVING Rates include excavation, granular fill and sand bedding l Precast concrete flag paving:

- B S plain precast concrete flags 25-35 l Textured aggregate flags 35-40 l Tactile flags 35-48 l Yorkstone textured flags 42-52 l Concrete block paving 24-30 l Grass concrete block paving, including topsoil and seed 27-35 l Interlocking block paving, herringbone pattern 30-35 l Concrete sett paving 39-44 l Pedestrian-deterrent paving 45-65 l Brick paving, herringbone pattern, to pedestrian area 60-65 l Brick paving, herringbone pattern, to trafficked area 65-75 l Cobble paving, including concrete base 80-95 l Yorkstone paving, including concrete base 100-115 l Granite sett paving to pedestrian area, including concrete bed 100-115 l Granite sett paving to traffic area, including reinforced concrete bed 105-125 Speed Curb Paving System l 800mm-wide raised paviours including concrete bench and haunchings 30-35 SPECIAL SURFACES FOR SPORT/PLAYGROUNDS Rate includes excavation and hardcore base l Reinforced grass system including sand, soil and grass 22-27 l 'Playbark' including filter membrane 40-45 Rates include excavation, granular fill and macadam base l Rubber safety surfacing; black 62-87 l Rubber safety surfacing; coloured 90-105 TIMBER DECKING l Sawn hardwood boardwalk -1,000mm wide 110-135 -2,000mm wide 220-245 FENCING / RAILING £/m l Chestnut pale fencing, softwood posts, 900-1,200mm high 11-14 l Post and rail fence, treated softwood, 1,200mm high 18-22 l Chainlink fencing, concrete posts, 1,200-1,800mm high 21-26 l Rectangular wire mesh fencing, concrete posts, 1,200-1,800mm high 20-30 l Close boarded softwood timber fence, concrete posts, 1,350-1,800mm 30-40 l Precast concrete post and panel fence, 1,500-2,100mm high 32-42 l Galvanised mild steel bar railing, 1,200-1,500mm high 75-90 SECURITY FENCING l Chainlink fencing 1,200-1,800mm high, with barbed wire;

set in concrete 25-30 l Galvanised steel palisade fencing, 2,500mm high; tops split into two prongs; set in concrete 85-100 l Welded steel mesh panel fencing; set in concrete 190-210 STREET FURNITURE £/nr Bollards l Natural grey concrete, 250mm diameter x 500mm high 90-110 l Exposed aggregate precast concrete bollard, 1,000mm high 170-200 l Ram raid bollard 750-1,000mm high; steel core, set in concrete 260-310 Plant containers l Precast concrete, exposed aggregate finish, 970mm diameter 175-220 Litter bins l Precast concrete, exposed aggregate, 710mm diameter x 500mm high 195-215 l Cast iron, free standing, 500mm diameter x 850mm high 455-485 Cycle stand l Tubular steel frame, single bike 60-90 Outdoor seats l Concrete frame, 2m long 240-260 l Steel frame, hardwood slats, 2m long 275-295 Tree guards l Mild steel bar, 460-600mm diameter, 1,550mm high 300-350 Steel parking posts l Fold down type; set in concrete 450-500 LIGHTING £/nr l 900mm-high powder-coated steel bollard, louvered polycarbonate luminaires 490-520 l 3m-high tapered aluminium columns; globe luminaires 520-560 l 5m-high galvanised steel floodlights; aluminium luminaires 675-725 SOFT LANDSCAPING 2l Planting, seeded areas 4-6 l Planting, turfed areas 6-11 l Planted areas; bulbs 10-20 l Planted areas; shrubbed 12-22 l Mulching 3-5 TREES £/nr l Tree pits 1x1x1m deep; machine dug 60-70 l Tree guards, wire mesh and stake 16-21 l Tree grille, cast iron, 1,200mm diameter 230-280 l Nursery stock trees, semi-mature trees 20-25cm girth 400-520 l Nursery stock trees, semi-mature trees 55-60cm girth 1300-1400 WATER FEATURE £/m 2l Formation of lake, excavation to 1.5m deep maximum, off site disposal; butyl liner and blinding layer; top soil layer and planting 50-90

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