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Statistics on

Production index for construction

The production index measures the development of activity in the construction industry. The statistics is a monthly volume index and is based on hours worked in the industry.

Updated: 25 September 2025
Next update: 27 October 2025

Selected figures from these statistics

  • Construction. Index of production. Changes in per cent and weights. 2021=100
    Construction. Index of production. Changes in per cent and weights. 2021=1001 2
    Index of production. Seasonally adjustedIndex of production. Calendar adjustedWeights
    Monthly changeTwelve-month change
    August 2025 / July 2025August 2025 / August 2024
    Construction-0.8-3.0100.0
    Construction of buildings-1.7-3.934.6
    Civil engineering2.010.511.1
    Specialised construction activities-0.7-5.154.2
    1Adjusted for working-days and for public holidays in Norway.
    2The weights are updated annually, and are valid for the entire year.
    Explanation of symbols
  • Index of production. Construction, seasonally adjusted and smoothed seasonally adjusted. 2021=100

  • Construction. Monthly index of production and 12-month change, by main industrial groupings. Unadjusted series. 2021=100
    Construction. Monthly index of production and 12-month change, by main industrial groupings. Unadjusted series. 2021=100
    Index of production. Unadjusted
    August 2025Twelve-month change
    June 2025 - June 2024July 2025 - July 2024August 2025 - August 2024
    Construction92.6-2.2-2.9-7.4
    Construction of buildings86.7-3.1-3.9-8.5
    Civil engineering103.16.97.85.2
    Specialised construction activities94.2-3.6-4.6-9.4
    Explanation of symbols
  • Construction. Monthly index of production and monthly changes, by main industrial groupings. Seasonally adjusted series. 2021=100
    Construction. Monthly index of production and monthly changes, by main industrial groupings. Seasonally adjusted series. 2021=100
    Index of production. Seasonally adjusted
    August 2025Monthly change in per cent
    June 2025 / May 2025July 2025 / June 2025August 2025 / July 2025
    Construction97.3-0.6-0.1-0.8
    Construction of buildings90.70.20.4-1.7
    Civil engineering105.00.40.72.0
    Specialised construction activities100.1-1.2-0.8-0.7
    Explanation of symbols
  • Construction. Monthly index of production and 12-month change, by main industrial groupings. Calendar adjusted series. 2021=100
    Construction. Monthly index of production and 12-month change, by main industrial groupings. Calendar adjusted series. 2021=1001
    Index of production. Calendar adjusted
    August 2025Twelve-month change
    June 2025 - June 2024July 2025 - July 2024August 2025 - August 2024
    Construction98.3-2.3-2.9-3.0
    Construction of buildings92.3-3.1-3.7-3.9
    Civil engineering109.76.97.810.5
    Specialised construction activities99.8-3.6-4.7-5.1
    1Adjusted for working-days and for public holidays in Norway.
    Explanation of symbols

About the statistics

The information under «About the statistics» was last updated 28 May 2025.

Hours worked: Productive hours worked by employees employed in the construction industry. Paid unproductive hours such as holidays, sickness, leave, courses, etc. is not included.

Establishment is defined as a locally limited functional unit that mainly conducts business within a specific industry group (Standard for industry groupings).

The index is compiled according to Nace Rev.2. Standard Industrial Classification SIC2007 .

index

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