ᐅ Concrete slab, foundations, earthworks – is the quotation acceptable?
Created on: 7 Feb 2016 12:36
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gmberg
Hello dear forum,
we are building a bungalow without a basement, measuring 9.5 x 12 m (31 x 39 ft). It is not yet decided whether to use a timber frame or masonry construction. The plot is a slight hillside site.
We have received quotes for the slab foundation, footings, and earthworks from two local companies, and they are quite close, around €32,500. That really surprised me at first.
I would like to ask you to take a look at this.
Especially the major items slab foundation and footings. Does it have to be this complex/expensive, where can costs be reduced, can it be approached differently and possibly done much cheaper?
Thank you for that!!
Prices are all net.
Earthworks total €6,650:
350 sqm (3,767 sq ft) topsoil stripping, stored on-site €437
150 cubic meters (5,295 cubic feet) excavation of building pit, stored on-site €465
50 cubic meters (1,765 cubic feet) backfill €210
145 cubic meters (5,117 cubic feet) wall gravel as backfill material, placement + compaction €3,842
130 sqm (1,399 sq ft) leveling building pit bottom €235
250 sqm (2,691 sq ft) rough grading €350
100 cubic meters (3,531 cubic feet) excavation disposal €1,110
Sewer works total €1,509.00:
15 cubic meters (530 cubic feet) trench excavation for pipes + reinstatement €615
50 meters (164 ft) laying KG pipes €750
Connection chambers €140
Concrete/Reinforced concrete works total €24,600:
150 sqm (1,615 sq ft) PE foil under slab €267
120 sqm (1,292 sq ft) slab foundation C25/30, 32 mm (1.26 in) reinforcement, 25 cm (10 in) thick incl. edge formwork €3,996
25 cubic meters (883 cubic feet) individual + strip footings C15/20 incl. formwork €5,125
5 cubic meters (176 cubic feet) individual + strip footings C20/25 incl. formwork €1,040
50 meters (164 ft) equipotential bonding €360
4.3 tons (4.7 US tons) reinforcing steel installation €5,550
400 kg (880 lbs) professional steel S235JR for columns/beams €1,840
23 sqm (248 sq ft) perimeter insulation 100 mm (4 in) + installation €455
125 sqm (1,345 sq ft) XPS insulation panels 100 mm (4 in) under slab €2,537
4 cubic meters (141 cubic feet) reinforced concrete for ring beam €2,080
15 meters (49 ft) vertical meters stirrups for columns 25/25 cm (10 x 10 inches) €1,350
we are building a bungalow without a basement, measuring 9.5 x 12 m (31 x 39 ft). It is not yet decided whether to use a timber frame or masonry construction. The plot is a slight hillside site.
We have received quotes for the slab foundation, footings, and earthworks from two local companies, and they are quite close, around €32,500. That really surprised me at first.
I would like to ask you to take a look at this.
Especially the major items slab foundation and footings. Does it have to be this complex/expensive, where can costs be reduced, can it be approached differently and possibly done much cheaper?
Thank you for that!!
Prices are all net.
Earthworks total €6,650:
350 sqm (3,767 sq ft) topsoil stripping, stored on-site €437
150 cubic meters (5,295 cubic feet) excavation of building pit, stored on-site €465
50 cubic meters (1,765 cubic feet) backfill €210
145 cubic meters (5,117 cubic feet) wall gravel as backfill material, placement + compaction €3,842
130 sqm (1,399 sq ft) leveling building pit bottom €235
250 sqm (2,691 sq ft) rough grading €350
100 cubic meters (3,531 cubic feet) excavation disposal €1,110
Sewer works total €1,509.00:
15 cubic meters (530 cubic feet) trench excavation for pipes + reinstatement €615
50 meters (164 ft) laying KG pipes €750
Connection chambers €140
Concrete/Reinforced concrete works total €24,600:
150 sqm (1,615 sq ft) PE foil under slab €267
120 sqm (1,292 sq ft) slab foundation C25/30, 32 mm (1.26 in) reinforcement, 25 cm (10 in) thick incl. edge formwork €3,996
25 cubic meters (883 cubic feet) individual + strip footings C15/20 incl. formwork €5,125
5 cubic meters (176 cubic feet) individual + strip footings C20/25 incl. formwork €1,040
50 meters (164 ft) equipotential bonding €360
4.3 tons (4.7 US tons) reinforcing steel installation €5,550
400 kg (880 lbs) professional steel S235JR for columns/beams €1,840
23 sqm (248 sq ft) perimeter insulation 100 mm (4 in) + installation €455
125 sqm (1,345 sq ft) XPS insulation panels 100 mm (4 in) under slab €2,537
4 cubic meters (141 cubic feet) reinforced concrete for ring beam €2,080
15 meters (49 ft) vertical meters stirrups for columns 25/25 cm (10 x 10 inches) €1,350
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Username_wahl13 Feb 2016 20:08We paid around €35,000 for earthworks and the foundation slab for an approximately 100 m² (1,076 ft²) insulated house (glass gravel underneath, Styrodur insulation on the sides), an 18 m² (194 ft²) garage, and an 18 m² (194 ft²) insulated conservatory (Styrodur). The site has a slight slope and no basement.
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