370 Natursteinarbeiten - Außentreppen

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Replacement of stair structure with landing: Foundation excavation: 4.00 m³ Cleaning, reworking and sealing of exterior wall: 6.00 m² Natural gravel: 1.25 m³ Levelling layer: 3.50 m² Drain mortar: 4.00 m³ Load-distributing slab: 1.25 m³ Reinforcement steel: 0.60 t Blinding concrete: 6.00 m³ Natural stone block steps: 17.00 m Surcharge for rounded corner design: 3.50 m Natural stone paving: 1.50 m² Horizontal sealing of concrete landing: 3.00 m² Steel grating including substructure (UK) + doormat: 1.50 m² Replacement of block steps with landings: Foundation excavation: 4.00 m³ Cleaning, reworking and sealing of exterior wall: 7.00 m² Sleeve foundation (block footing): 2 pcs Reinforcement steel for foundations: 0.30 t Natural gravel: 3.75 m³ Drain mortar: 0.75 m³ Load-distributing slab: 2.50 m³ Natural stone block steps: 8.70 m Natural stone paving: 11.50 m² Horizontal sealing of concrete landing: 7.00 m² Steel grating including substructure (UK) + doormat: 4.50 m² Replacement of stair structure with landing: Foundation excavation: 4.00 m³ Cleaning, reworking and sealing of exterior wall: 6.00 m² Natural gravel: 1.25 m³ Levelling layer: 3.50 m² Drain mortar: 4.00…

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