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Costs based on final account SUBSTRUCTURE Foundations/slabs £294/m 2Concrete slab on mini-piles; hardcore and insulation SUPERSTRUCTURE Frame £3/m 2Steel columns and PFCs with bolted connections, as canopy Roof terrace £309/m 2Timber decking on warm deck covering on timber joists Rooflights £12/m 2Flushglaze dg rooflights Staircases £25/m 2Refurbishment of existing stair External walls £2/m 2Making good existing Windows £136/m 2Timber-framed dg triangular fanlights External doors £191/m 2Aluminium-framed sliding folding door Internal walls and partitions £29/m 2Plasterboard on sw stud partitions Internal doors £54/m 2Painted solid-core timber acoustic (44dB) doors INTERNAL FINISHES Wall finishes £150/m 2Full-height pinboard lining on sw battens Floors finishes £97/m 2Lino flooring on self-levelling screed Ceiling finishes £37/m 2Western red cedar shiplap on sw frames FITTINGS AND FURNISHINGS Furniture £10/m 2Built-in ply seating SERVICES Space heating £69/m 2LST radiators connected to existing LPHW Electrical services £61/m 2Fluorescent tubes and double sockets to existing Builders' work in connection £44/m 2PRELIMINARIES AND INSURANCE £376/m 2EXTERNAL WORKS External covered teaching space (96 m 2) £27,500 GRP canopy, sedum roof, cement board weatherboarding fascia, steel frame mounted on concrete pads Playhouse (15 m 2) £12,000 Proprietary timber shed with timber mezzanine;second-fit insulation, pinboard lining, lino floor, pendulum light, power sockets External fire stair and fire escape doors and windows £41,000 Steel stair, fire-rated steel-framed glazing and doors Landscaping (paving, drainage, storage sheds and demolitions/repairs) £53,500 Safety surface, turf, concrete deck and pavers, steel handrails PRELIMINARIES, OVERHEADS AND PROFIT £33,000

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