F0001. Explanation of civil and civil technical cost data

F0001. Explanation of civil and civil technical cost data

Mentioned cost data is gross cost data.

The data is including contractor's surcharges and excluding design and engineering costs and value added taxes.

Contractors surcharges are:

  • general costs on site;
  • general costs;
  • profit and risk.

Cost data can be used only for budget estimating of large projects.

In te various tables the following abbreviations are used:

  • GFA: Gross Floor Area;
  • RA: Roof surface area;
  • BSA: Building surface area;
  • BC: Building Content (volume).

The civil and civil-technical cost data are grouped according to the Dutch civil industry NL/SfB classification system.

The list below shows a review of the codes according to the classification system.

For more information about the NL/SfB classification system see the report 'NL/SfB classification system of the Dutch SfB commission' published by the 'Bond van Nederlandse Architecten BNA' in Amsterdam.

Nl/SfB code Description
(0 -) Indirect project facilities
(00.1) Temporary site office facilities
(00.2) Set up Construction tools
(00.3) Risk coverage
(00.4) Project organisation
(00.5) Home office cost contractor
(00.6) Temporary facilities
(00.7) Demolition costs
(1 -) Substructure
(11) Groundworks
(13) Floor beds
(16) Foundation constructions
(17) Pile foundations
(2 -) Superstructures
(21) Outer walls
(22) Inner walls
(23) Floors, walkways
(24) Stairs, ramps
(27) Roofs
(28) Main load bearing structures
(3 -) Build completion
(31) Exterior wall openings
(32) Interior wall openings
(33) Floor openings
(34) Balustrades, railings
(35) Lowered ceilings
(37) Roof opening
(38) System walls
(4 -) Finishing
(41) Outer wall finishing
(42) Inner wall finishing
(43) Floor finishing
(44) Staircase and ramp finishing
(45) Ceiling finishing
(47) Roof finishing
(48) Final works
(5 -) Installation mechanical construction
(51) Heating
(52) Drains
(53) Water treatment
(54) Gas
(55) Cold generation
(56) Heat distribution
(57) Air treatment
(58) Climate control